(Part 2) Best coach & referee accessories according to redditors

Buy a megaphone of equal or larger size. Point the speaker at him, point the handheld microphone at him also. This should create a sound loop, which is about the most annoying thing to humans.

That should do the trick.

I like the Morakniv and firesteel ideas, and also:

• Wood/tablet/alcohol stove, $19
  
• AccuSharp knife sharpener, around $12
  
• Stainless steel cup that fits perfectly on bottom of Nalgene bottle (can be used for cooking), $9, an Equinox Bottle Bag, $11, a Survivor HK-106 knife w/ fire starter (clip point), $10, and a Nalgene bottle, $10 (pick 2-3 to stay under $30) are the start of a Nalgene bottle kit. That's not an ideal knife and may need sharpening but it is full-tang and I can confirm it fits inside a Nalgene bottle, which the Morakniv for example will not.
  
• The book Where There Is No Doctor, $25
  
• Perhaps a keyring for EDC featuring such things as a Streamlight Nano ($7), firesteel ($10), something like a [Kingston SE9 USB drive](https://www.amazon.com/dp/B00URLZTNU/ ($7), a universal handcuff key ($5), and a whistle ($8).
  
• A Leatherman Squirt PS4 (with pliers) for EDC, $30
  
• WaterBOB, $23
  
• Emergency hand-crank radio, $20+

Fox 40 Sonik whistle. Not something to be used for fun. This is a real emergency whistle that can reach 120+ dB. It's equivalent to having a chainsaw revving next to your head. They also make a standard version if you're not trying to blow out ear drums. It still gets pretty loud.

Olight I3E EOS

Olight I1R EOS if you want something rechargeable.

Also, Olight does regular sales and new releases on their website.

Streamlight is another great option but their keychain size offering is just not very good compared to Olight. I do believe everyone should have a Pro Tac 1L-1AA since it can take both C123A batteries and standard AA batteries.

Adastra | Portable Megaphone With Siren | 10W https://www.amazon.co.uk/dp/B00KS8C9H6

Bargain

Grab one of these and bring a red and green dry erase pen set (shot vs. goal). You can clip on a pre-printed sheet with the roster on the opposite side in order to write down the stats in pen (goals/asssists/PIM/etc.).

The core material EDC, to me would be knife, light and cellphone. But cool keychain gidgets are really nice too.

So I'd say if you have a knife, a good flashlight would be next, then a backup knife and light (one is none, two is one). I like a multi-tool or SAK for my backup knife, and a keychain light for my backup torch.

(In case you're curious, after that I start considering footwear, gloves, hats and other clothing.)

(Sorry, I'm feeling a bit lazy, so you'll have to live with bare links.)

This one is pretty popular for keychain use: www.amazon.com/iTP-A3-EOS-Flashlight--Upgrade/dp/B006K5C2EG/

Fenix has single AA and 123 powered lights that are well regarded and compact:
AA: http://www.amazon.com/Fenix-E11-Compact-Lumen-Flashlight/dp/B005GW8UC2
CR123: www.amazon.com/Fenix-Compact-140-Lumen-Flashlight/dp/B005CWRB44

There are a lot of other brands worthy of consideration too, of course (Fourseven's mini, Jetbeam, Klarus, Zebra, just to name a few).

There are also a lot of much larger but more capable flashlights out there.

Keychain stuff is always nice:
I use these sliver grippers way more than I thought I would. The convenience of always having them around is unparalleled: http://www.amazon.com/UNCLE-BILLS-SLIVER-GRIPPER-TWEEZER/dp/B001KMSUA4
I've been thinking of getting this, I'm a little leery about that much stuff for so little cost though: www.amazon.com/gp/product/B003A5E5IK
I love this style of keyring, but it's way cheaper on eBay: http://www.amazon.com/Vigilant-Gear-Aircraft-Cable-Ring/dp/B006ZSP1PA
Little one-piece keychain tools have become really popular, and I really like having a little prying and screwing tool always present.
The Gerber Shard is cheap but probably at least worth what you pay for it: http://www.amazon.com/Gerber-22-01769-Shard-Keychain-Tool/dp/B002ZK45IQ
This one has a bit more functionality, and is made of the magically delicious titanium: http://www.amazon.com/Schrade-Chain-Tool-Seatbelt-Cutter/dp/B004PQJ1QO

Keychain multi-tools can be good.
Here's one from Gerber: http://www.amazon.com/gp/product/B006M9NIDO
Supposedly the build quality isn't as good as Leatherman's though: http://www.amazon.com/Leatherman-64010101K-Micra-Multi-tool/dp/B000JCN0FG

I'd also recommend looking for a glow in the dark lanyard.

A pen you can EDC is another "you're surprised how often you use it" item. I have an Inka and it's definitely alright, though a bit fiddly: http://www.amazon.com/Nite-Ize-Inc-Inka-Pen/dp/B001E6R6EM/
The biggest competitor is the classic Fisher Bullet Space Pen: http://www.amazon.com/Fisher-Space-Pen-Bullet-400B/dp/B000WGD13U

Something to write on is nice. I'm a real child of the digital age, but I still like having an analog recording medium on me. I prefer Pentalic's pocket size books to Moleskine's. They're a little thicker, but they have a flexible cover, and are usually cheaper. Here's one: http://www.amazon.com/Pentalic-Travelers-Sketch-3-Inch-4-Inch/dp/B0025TZ35Q but I don't know if it's ruled or grid or what. I also prefer a bright color cover to make it easy to spot.

Continuing on the writing stuff matter, a sharpie and/or a metallic (ink) sharpie are nice to have. You can get sharpies with stainless steel cases too, which feel nicer to hold, and you're a little less likely to forget somewhere.
Black (dozen): http://www.amazon.com/dp/B00006IFEP
Stainless Steel: http://www.amazon.com/Sharpie-Stainless-Permanent-Marker-1747388/dp/B001V9LQLG
Metallic: http://www.amazon.com/Sanford-39108PP-Metallic-Sharpie-Permanent/dp/B00119QWCO

I think everybody should carry some sort of bandanna. I carry an off-brand buff (tubular bandanna) and an olive drab shemagh.

I like to carry a small baggie of what I call MacGuyver goods. Paracord (bound up in a hanayawa right now), some gorilla tape and electrical tape wrapped around a card, super glue, a sewing kit, zip ties, twist ties, rubber bands, safety pins, binder clips, and a few 1 quart ziplock freezer bags. (Like hell I'm finding links for all of those.)

Yet another "surprising how useful it turns out to be" item is a small mirror: http://www.amazon.com/Coghlans-Featherweight-Mirror/dp/B0047QV44O/

Whistles are useful for warning people of fire or danger, or calling for help, so I like to carry one: http://www.amazon.com/Fox-40-Whistle-Breakaway-Lanyard/dp/B00544UJC6

A monocular is fun to have on your person. This particular model is really great because of its super low minimum focusing distance, which lets you use it as a sort of loupe. In regular mode it's good for looking for house numbers or your car in a parking lot, that sort of thing: http://www.amazon.com/Brunton-Echo-7x18-Pocket-Scope/dp/B000FKMTBS

I think that's all I could come up with off the top of my head.

Loud whistle - https://www.amazon.com/gp/product/B00FOJRF64/

Heavy duty velcro - https://www.amazon.com/gp/product/B001O6T2ZS

Sugru throttle nub - https://www.amazon.com/dp/B01BFE0KNQ/

I liked the recent post with the bicycle bell mod, really anything to enhance safety, especially in NYC, where jaywalkers cross roads diagonally with their heads buried in their phones and then proceed to do the "evade me" shimmy when they finally see you coming.

I use it sparingly, 120 dB is on the human pain threshold for hearing, so it's quite jarring. A quick toot toot tends to resolve most antsy situations, but a nice sustained hard whistle can even help you be heard from inside yellow cabs.

I bought the acme tornado because it looks cool. It also has a unique sound.

www.amazon.com/dp/B005UGMKFM/ref=cm_sw_r_cp_api_o7CNBbWXRFMCA

Get yourself a good old ‘merican Referee shirt. Tons of styles available

Crown Sporting Goods Men's Official Black & White Stripe Referee / Umpire Jersey - Pro-style Ref Uniform, Great for Basketball, Football, & Soccer (XL) https://www.amazon.com/dp/B00N3LAG0M/ref=cm_sw_r_cp_api_i_XEbhDbXY4R2JB

This is a pretty generic/traditional one. It's what I grew up on.

If you want something a little more modern/hip you could go for this from Eephus League. I have it and enjoy it. A little higher quality/pricier but not unreasonable.

GymBoss is a good cheap one.

Search Amazon for a boxing timer. We have something like this, but ours doesn't have the lights and it has adjustbale rounds: http://www.amazon.com/Title-Boxing-TITLE-Classic-Timer/dp/B00FJBFHIK/ref=sr_1_5?ie=UTF8&qid=1398194375&sr=8-5&keywords=boxing+timers

Also, if there is a stereo available, you can just download an interval timer app and plug your phone into it. Or rely on the external speaker on the phone, but that can be hard to hear in a crowded gym or with music on.

Mike Mike Mike Mike Mike Mike

I'm a full time student right now, but this summer I'm going to be a lifeguard, so it would really help to have this whistle.

>Do yours have the lumeon for lighting up the inflated jacket?

Yep. And flexible-stem light on the outside of the bladder for seeing stuff.

>Are you using personal ais in each life jacket as well?

Well this is only a personal lifejacket, I don't own or run a boat (yet), but in my lifejacket yes, I have an AIS MOB1 from Oceansignal.

In case you're interested, based on a sea survival course lecture I was a given a while ago, I bought the best lifejacket I could find, and decided to research, purchase and fit the very best whistle (all lifejackets come with a an ISO standard whistle, but it's awful, so I wanted another better one), emergency knife, emergency signalling light, and emergency line (for tethering people together in the water or tethering to safer places like liferafts or floats), I possibly could. I came up with:

• Fox 40 Sonik Blast CMG Whistle
  
• Aqualung Small Squeeze Dive Knife (blunt tip, will be kept on the webbing belt of my lifejacket)
  
• This thread about lights... (I'll probably end with an LED strobe beacon and your recommended Cyalume SOS lights, they look great!)
  
• Red/orange Dyneema hollow braid line (don't worry, I know that having random long pieces of line floating around in the water can actually be dangerous. I' going to do some experiments, and hopefully find a way of coiling the line, then tying the coil to my lifejacket (probably inside) with a quick release hitch and making the end easily reached, so that I can easily deploy the whole lot when and if I need to).
  
• Possibly some small floats (like these) to keep each piece of equipment floating and easier to find.
  
• Probably also some retroflective tape for marking things.
  
  > If you want to tie it on, you could open one end of the foil, tie it up, then tape the top closed.
  
  I like this idea. I imagine I could do some experiments and come up with a good 'weak enough link' to tap the top that I could pull the foil off relatively easily when I needed to. But it seems like your rabbit hole comment has solved the problem for me, because a more robust version of that of that is exactly what Cyalume offer!

You could go uber-tactile and get a tally counter like umpires use. Just imagine that satisfying click when you raise your threat level (or, I guess, the annoyance of having to do it about 30 times at the beginning of each game).

https://www.amazon.com/Soccer-Referee-Wallet-Card-Yellow/dp/B00JKGONLM

Or buy red and yellow spray paint and a deck of cards ==> 24 red and 24 yellow cards to hand out as you see fit.

Law Five


Amazon 4 Colors for $80

If you're keeping just your own score, https://www.amazon.com/Pixnor-scorecard-Holes-Stroke-Counter/dp/B019Q3AS94/ref=sr_1_12_sspa?ie=UTF8&qid=1526409296&sr=8-12-spons&keywords=golf+scorecard&psc=1 works pretty well

You could go old school and time yourself at a track like we did back in the Stone Age. You can get a stopwatch on Amazon for less than $7.

https://www.amazon.com/gp/product/B00QPCK6HY/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1