So I decided to try my hand at painting some plates (with the help of some printed images to guide me). Here's how I did it...
I purchased some clear plates, printed some silhouettes that I found on Google image search (I know, really original, Al), I taped the images face down on the top of the plate, then flipped it over and painted on top of the image. Then, I spray painted the plate on top of the image I just painted. Flip over, and voila! A pretty cool plate.