I have a hard time believing that the ChinaVasion DV59 is a fully functional HD camera. The camera measures a mere 1.25 inches, yet can shoot videos at 8 megapixels.
The ChinaVasion DV59 is shaped like a miniature DSLR camera and can shoot video at 720p at 30 frames per second. The camera can hold a 32GB memory card, although I doubt you would be able to view recent photographs on its tiny screen.
The camera itself sells for $45, a price that is considerably cheaper than what most DSLRs go for these days. While I wouldn't use this camera as my everyday point-and-shoot, it does seem like it would be fun as a party favor or a novelty item. You can check out the camera here, along with many more innovative cameras.