Ash tray made from a coke zero soda can. I went through like 3 of these and one monster energy drink can before I got the hang of it. Poked a hole with an x-acto knife and then cut the rest of the top off with a pair of scissors. Then I cut about 12 strips and folded them over and folded them to the side. I used cans for ash trays anyways because I could just put them out by dropping them in so when I found this how-to I was so happy.