Found this on Kotaku earlier this morning:
Novelty mice for PCs never really made a splash in the marketplace. One reason may be the ergonomics of a mouse crafted like a hamburger hardly make for comfortable web surfing or extensive sessions of one’s latest gaming addiction. To add to the crop of uncomfortable novelty mice, Banpresto has announced Mario and Goomba versions which may appeal to retro Famicom fans. The promotional sheet for the mice lists compatibility with PCs only but since there are no special software drivers, we’re guessing that they’ll work with Macs as well. Preorders are welcome today to ship in mid-late November 2005.
This looks like pixel goodness ti ne.