That's just a openSCAD package to make your own design for this 8-bit videogame coasters http://www.thingiverse.com/thing:115150. Came with a few examples. If you couldn't find the character you like, just design it. TODO: I'm having troubles with pictures who have holes on them. I'll try to fix it.At file "8-bit-customizer.scad", you will find a 16x16 matrix called "dibujo", just think on the numbers as pixels. 1 is pixel on. 0 is pixel off. Added: 2 is for put a pixel at medium height. Just google for the 8-bit draw you want and try to reproduce it!