So far number one on my list is just a big ole jar of warheads. I am not a huge hard candy fan but if you ever have had warheads you know how damn good they are. On a whim I thought to bring some this year and found this bad boy,
Warheads Extreme Sour Hard Candy (Pack of 240) https://www.amazon.com/dp/B004RGV70U/ref=cm_sw_r_cp_api_i_BtxwEb5W6DWY8
So if you want that sour puckering sweet pain, come find me at camp hype train and I’ll hook you up!
If you are a fan of pins but constantly worry about losing them or people stealing them (sadly this happens), you are gonna want some of these,
Pin Keepers Locking Pinkeepers Back With Wrench Biker VERY LOW SHIP https://www.amazon.com/dp/B007WMYS8Y/ref=cm_sw_r_cp_api_i_YwxwEbJDBER03
These things lock using an Allen wrench and are super secure. I have personally caught people trying to take them off my bag but they failed because I use these. They also got caught on a airplane seat one time and the pin broke before it came off of my bag. So they definitely work.
Earplugs. Get them. Don’t be silly, your hearing will go if you don’t protect it and then it’s no more silence and shitty sounding music. Get these,
Eargasm High Fidelity Earplugs - Electric Forest Edition - The Official Earplug of The Electric Forest Music Fesitval https://www.amazon.com/dp/B079H3ZV24/ref=cm_sw_r_cp_api_i_FzxwEb8HYE18P
Apparently they have a new electric forest versions of them which I was not aware of until now, so I’ll prob grab a second pair since mine are getting old.
*Edited to add more items
To add on to the good advice already posted in this thread, there are two types of metal locking backs. The ones Penny Arcade sells are spring-based and are a reasonable compromise between safety and convenience. PA charges far more for these than you would pay if you just get them off Amazon or Ebay, so if you plan on collecting a lot, I'd just buy a pack of 10 or 20 with your next Amazon order.
If you have a pin you really care about or is especially valuable (e.g. DLC, Ellie), there are locking pin backs that use a tiny allen wrench to tighten a set screw. These are more secure than the spring-based locking backs, but obviously it's harder to take them off their back if you want to trade.