Petapotty
The jury is still out on whether this thing is good or evil, but any way you look at it, it's pretty outrageous. The PETaPOTTY is the doggy equivalent of a kitty litter. It's basically a box of grass with drainage. Be sure to check out the video on their site– complete with a Greyhound giving a full demo.
$235 at Hamptons Hound