Check out the tutorial here.
Made the stencils and printed the cards. They turned out so well!
Robot ice cubes!
Used the Fred & Friends Chillbots Ice Cube Tray.
It was a little difficult getting the robots to come out of the tray without breaking their legs and claw hands off, but after breaking a few batches I figured out that if I ran the tray upside-down under hot water for a few seconds the little robots popped out pretty easily.