Thread: You'd have to be keen to fire one of these...

Originally Posted by No.3

Well that post is useless without photos (and plans and a cutting list ahem).

Lol. Photos attached. The pipe is 32mm inside diameter. A longer pipe allows speed to pick up more. The flap is a square of icecream lid sewn between a light cotton fabric. The key is the flap: too heavy and the marshmallow gets sucked down the vacuum, too light and it doesn't suck closed after the shot. After 5 years of experimentation I've used the fabric because the force of the projectile would cause plastic fatigue after about 5 shots or tear the duct tape.
Not shown: the magazine I made for semiautomatic rapid fire. Have mislaid it

Identify your target beyond all doubt because you never miss (right?) and I'll be missed.