If there ever was a useless USB peripheral (unless making you laugh in a juvenile manner for the first 10 seconds is counted as something useful), the USB Crunching Dogs will fall in the same category as its predecessor, the much more crude USB Humping Dogs.

These Crunching Dogs do endless sit-ups when you plug them into your USB port. Do they ever stop? No. Is there an off switch? Nope. However there is some kind of satisfaction to be had at watching a tiny dog tirelessly exercising on your behalf. It almost makes us want to leap from our desks, forgo electronics and computers and start doing jumping jacks… but then again that’s where the trouble started with the Humping Dogs.

You can get these 2.25″ pooches for $9.99 a pop from ThinkGeek.