If you ever needed to fit a square peg into a round hole on short notice, then this Instructable is for you!With my parents over for the weekend, and the hour of midnight rapidly approaching, we needed to blow up the ol' air mattress and get to bed. But, lo and behold, one of the D batteries inside ...By: jimmypat
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from Instructables: exploring - technology - robots http://ift.tt/1IKKT2t
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