This one falls into two simultaneous and often contradicting categories of “Why?” and “Why Not.” Introduced by Mini Artillery, the Pocket Cannon is a legitimate cannon. Loads from the muzzle, using real powder, and shoots real .30 cal cannon balls.

You can purchase a cannon for $39, which includes the “ramrod” and 3 steel balls as a starter kit. The Mini Cannon uses standard black powder and slingshot balls.

No figures on velocity, accuracy, or powder. Regardless, these can put a real eye out so be responsible when having fun.