How many of you have a color laser printer at work or a color inkjet at home, but rarely ever print anything in color? Yeah, me too. But last weekend I found a great use for a color printer when I discovered this optical illusion dragon. Check out this video clip to see what the illusion looks like, and then download a PDF dragon of your own to print and try out the illusion. Don't forget to close one eye and move slowly back and forth at first. Once you catch the illusion, you can move a little faster and try different angles. You'll look like a dork while you doing this, but I'm willing to bet that you'll be amazed at the coolness of this optical illusion. Have fun.