Materials needed: Fly swatter, RV with a light on the outside
# of players: as many as you want
What you do:
1. Turn on the RV light for the outside
2. Wait until night, until a storm of gnats come and start buzzing around the light on your RV.
3. Start swatting them like mad, until they’re all dead.
4. Gnats are about 1/3 as “smart” as a fly, so they’re easy to kill. Have fun, and be ready for a big mess to clean up the next day…