Tools- push pin, scissors, marker(sharpie), maybe penny or thumbscrew and 2 cans.
-Mark base of both cans about 2-3 inches from bottom. Flip one over and push together the bases.
-Make 8-16 holes with pin on either inside or outside rim(your choice)(experiment with all your cans).
-Make a hole in top center for filling alcohol. Should be just large enough for thumb screw or use a penny to cover hole.
-use a priming dish, light and enjoy.
Very easy and may I say "youtube it". Have fun and good luck.