I saw these hopping around the net last year, and so I had to whip a few up. Super easy. I melted some white chocolate in a ziplock bag (about a minute) and snipped off the tip and then just drizzled back and forth. You just have to break them apart before the chocolate totally hardens. I used white M&Ms I colored eye balls on using a ink writer, but you could also buy those little monster eyes they sell in the cake decorating section, or yellow M&Ms if you can't find the white ones.