There have been many creative reuses for Altoids tins posted here but these take it up a techie notch. Above is the The MintyBoost! USB charger. It can add hours of power to any device that uses a USB connection--cameras, cell phones, mp3 players, etc. Check out the iPod case, the mini speakers, the headphones amplifier and the iPod docking station. The link provides full instructions on how to make these tiny gadgets.