heres a fun little trick. on a plastic pop/soda bottle, unscrew the bottle cap, and then pull off the ring that the cap was originally attached to. take the ring and turn it inside out, and then slide it over the top of the bottle cap. WHALAH! you have a cool ninja star lookin bottle cap! i started doing that during school last year out of boredom, then fuckin everyone started doing it also. weird...