Wooden Flare Pistol

I made this flare pistol in my spare time, I didn't spend any money on it because I already had the materials. it uses homemade black powder stars and homemade willow black powder to fire. It uses a toy gun cap as a primer. the cap fits over a nipple on the back, the nipple is made from a rivet. it shoots the stars about 20-30 metres high and it can also shoot rocks and marbles. this is my entry for JaycubL's bow giveaway.