Frylock from Aqua Teen Hunger Force. For best results print upside down. Note: I made these quick and dirty for a friend's bar and didn't have much time to spend on the design. With a .4 nozzle there were a few tiny gaps I couldn't eliminate without more time than I had to dedicate to a free project. Since these were being stuck on a glass door that light shined through, it didn't look great with the tiny gaps. As such I added a component called “back” to obscure these gaps. I used white to allow the colors to still shine through. If it's not being backlit, use any color.