4 August 2015: New mouse pad
I bought this oppai mouse pad thanks to CliffyB's glowing review. (The review is sort of tsundere, so you have to read between the lines.) As for the boobie mouse pad itself, I'm just about certain that it's an unlicensed Chinese bootleg, but the quality is adequate for what it is. The underside is a solid flat non-slip surface. Once you peel off the protective plastic film, the mouse pad will stay firmly planted to your desk no matter how vigorously you mouse.