Shell Bomb Bag
Squeeze this foil pouch and it begins to inflate instantaneously. Throw it quickly — like a grenade or a hot potato —and within 3-5 seconds .... POW! The toy bomb bag will explode with a big bang that should catch your victims off guard. These are both safe & non-toxic with the only after effect being a very loud noise and a citric spew caused by the chemical reaction (for this reason it is not recommended for use on carpeted surfaces, but is otherwise safe). Throw one under your buddies garage door or in a port-a-potty for a guaranteed reaction.