Amp1
Matt has a great iPod Shuffle box headphone amp (excellent re-use!) writes –

“I made a CMoy headphone amp based on the description in Make vol. 4. It wouldn’t fit in an altoids tin, so I put it in the clear box that an iPod shuffle came in. The wiring is kind of messy, but it still looks pretty neat.” [via] – Link.

From the pages of MAKE:
Img413 1585