Meet MAKE’s Daisy MP3 Player Kit, an open-source setup for playing your favorite MP3 and WAV files all from a raw chip board. This kit is not a complete player, because the Daisy comes in parts. You need to give it a power supply to actually use it.

You can buy whole kit from MAKE for $115. With the full Daisy MP3 kit from MAKE, you’ll also get all the source files, hex files, EAGLE cad files, and documents.