I couldn't find an appropriate one, so this is the next best thing...
Back in the day when I started nearly six years ago I actually requested if I could turn the hose on visitors. Just to make sure they took care of personal hygiene, I also tried to get a deodorant manufacturer to sponsor us for free deodorant samples. Why? Because people on convention generally have poor personal hygiene.
In the "Urban Dictionary" we find the following definition:
|1.||Otaku Funk||19 up, 8 down|
The pungent smell when multiple hardcore anime fans or "otaku/weaboo" have gathered. This is mostly due to lack of proper hygiene.
I stopped going to anime conventions because of the Otaku Funk.
The Otaku Funk at his place is over 9x10^3
The funk is strong with this one
An extra bottle of deodorant should be on your person at all times. Use it when you get sweaty. Also, pack some extra t-shirt for the convention, don't wear the same on for more than a day at a time. If you plan to volunteer, take a clothing rack with you and hang you shirt out to air out a bit. Febreze is your friend here. Use it to treat stinky clothing.
Regular showering and washing yourself properly in the morning helps you getting rid of unwanted odors.
Using an anti-transpiration deodorant is also a good idea. I prefer Rexona or Gillette. Works like a charm. Body sprays can complement these perfectly. Plus you smell nice all around. So when you stand in a line and you smell something odd, check yourself first...