I used a how-to tutorial for this necklace but I had to improvise some of the materials. I used super glue to adhere a piece of wire to the back of the mustache that connected it to the chain. I just used a piece of cardboard I found for the back and painted it white.

Tutorial by Yaelle Q. : http://www.cutoutandkeep.net/projects/two-sided-mustache-necklace