Batteries? We Don't Need No Stinkin' Batteries! Batteries are the bane of many a parent's existence. Why does it seem we never have the size needed to power the one toy that will keep the kids happy? One dad decided to end the vicious cycle of battery dependence. With some basic materials and a little bit of know how, this little piano now cranks battery free.
Uber-clever daddy Dominik was faced with a dying toy piano that required batteries to bring it back up to tune. Instead of heading to the corner store he picked up a hand-crank flashlight from Ikea (the LJUSA, $4.99), a drill and a soldering iron. With a few quick solders and a neatly installed handle, the little piano instantly became battery free.
Dominik admits that cranking the handle for thirty seconds will only get you a few tunes, but really, that might not be such a bad thing. Instructions on how to make this all happen can be found over at Ikea Hackers as well as at Dominik's Tumblr page.