For the Flying Lead rules I've built some markers based on one cent coins. Initially I wanted to use them for the occasion a miniature is out of ammo, but since that state is rectified automatically at the end of the turn, that would make little sense. Instead they will probably be used as Jammed markers to show characters with jammed weapons. Both bricks and bullets are made from architectural polystyrene rods. The backpack is from some random Tamiya WWII set.
