Wall of Peanuts
How about a Peanut-Gatling?
First design ideas for the revolving barrel cage:
Anyone cares to join? Contact: MiKa
The caliber is 8mm so it should be capable of propelling peanuts or dried peas through the barrels with compressed gas. The whole thing displayed here is roughly 13cm long.
(These are simple screenshots from Art of Illusion, I'm not really happy yet with my rendering skills.)
Bright blue parts belong to the revolving barrel cage, olive parts are the shutters for the barrels and dark blue are the fixed (non moving) parts.