What to do with Ball Bearings?
For some while I've had a pile of ball bearings sitting here on my lounge room table, and without knowing what on earth to do with them, I now ask you. I have found uses such as adding to my "mousetrap racer," a small car, run by a mouse trap, that can go up to 15 metres. With ball bearings it goes twice as far as it used to, so I have become curious... what to do now though? All ideas would help, and an instructable would be even better. Cheers