I've added files for a robot and bumblebee pattern. You should be able to manipulate the Illustrator files to make your own images.
Special thanks to Procyon, Eric and Christy's son, for modeling in his first Instructable!
Step 1: Materials
2. Embroidery Needle - as thin as possible to get through the holes
3. Black Acrylic - 1/4" x 12" x 12" makes 2 hangers
4. Laser Cutter - you send files to Ponoko to have them cut if you don't have access to one