http://www.youtube.com/user/JoergSprave?feature=watch
It's an insane German making slingshots. There's a YouTube channel of it. It's all very impressive and should be watched.
Highlights include the pump-action Oreo slingshot gun (don't use it to fire them into your mouth, they can punch through cardboard), the full automatic dart firer, and the giant slingshot that can basically lob a small cannonball a good 200m.
That is really quite impressive and awesome, if slightly terrifying. How did you discover this?
Some of his slingshots actually resemble a crossbow. :D
It's a bizarre set of stuff.
The slingshot condom applicator takes the cake rather...
Does anybody else still watch this channel? Something about the insanity, wood, rubber and ingenuity just never gets old. :P
I only just saw this thread when you posted. Definitely going to check this out.