Apple's Magic Mouse is nice looking, to be sure, and those touch gestures look handy. But it's got a rep for not being the most comfortable peripheral to use, for better or worse. But hey, that's nothing some clever MacGuyvering can't fix.
This $10 block of silicone with a suction cup on the bottom is apparently the perfect way to make the Magic Mouse a lot more ergonomic. It supports your palm and lifts it up a bit so your fingers rest comfortably on the buttons. Sure, you could buy a mouse that felt good out of the box, but would that mouse be made by Apple? I didn't think so.