Here's an excellent DIY transformation of an eighties boombox into a laptop case and bookbag that plays music from the computer stored inside. From the HOWTO:
I added a small amplifier that I found on some toy speakers to increase the sound volume and quality. Don't worry, I respect others when I play music. It's my school backpack first and foremost.
Everything shown is from a thrift store except for the eyelets/hinges/clasps, which came from a local hardware store. The strap is a modified women's belt, and the boombox had a damaged speaker cover that I replaced with that rabbit.
I was picking up food from a fast food restaurant one day, and an old man told me that he is happy that I'm "taking the music to the streets." That practically brought a tear to my eye.
Link (via MAKE: Blog)
