Apple iPod shuffle
I can' imagine how, when, where or who would actually use this. It seems so impractical, but at the same time so genius. I mean, I friggin' love karaoke -- not by me, but by my friends. This is could a greta gift for one of them.
If you're a shower singer like I tend to be, then you might want to get one of these waterproof cases for your iPod. It has a shatterproof body and uses a silicone o-ring to keep your iPod dry.