He was looking for a method for the Russian Roulette the guy did with the nail guns. Obviously, my method only applies to cups and an object. So, the method would not work.
no offence or anything, but the dude who used the nail guns in phonomenon is very unoriginal. he used a very old concept. it took me all of 2 seconds to figure out. anyone who has used a nail gun, you would know how its done.