Take a soda can that is empty, lube it up nice and slick then slide it into your partners vagina/anus. Get up real nice and close and start humming loudly into the end of the can that is sticking out. This will create a unique vibrating sensation. Continue to do this louder and louder until your partner pisses or shits on your face due to the vibrations.
I don't recycle cans because my girlfriend loves to use them to do the soda pop on my face.