Protect my house on mischief night?
Airsoft sniper in the tree
Super Soaker Flame thrower
Chasing them on a bike with a 100Db alarm on it
MORE airsoft guns
Paintball Bazooka "homemade"
Camera flash for blinding them
Firecrackers (possibly if i can find them in time)
panic button for car alarm
POSSIBLY putting a trail of gasoline on the road so in case of a drive by someone in the bush can light it and scare the crap out of driver and prevent them from leaving
Playing random music VERY loud and getting like 10 people to give a GIANT group hug
Night vision (kipkay design)
pitch forks and torches
Please any other ideas would be helpful