There's really not much to say about this product that the video doesn't eloquently say for me, so why don't you go ahead and watch it and then come back. It's OK, I'll wait.
There, you see? There's no word on how to actually buy one of these, but let's go ahead and consider that a blessing in disguise for any of you who would actually use this thing in public.
Humping Dog USB Drive [Digital World Tokyo]