Here's a robust mobile sound system composed of circuit boards from old PC speakers and a PC power supply.
This project has five pages of instructions, including timely advice on how not to electrocute yourself while assembling it. We won't go into all the details, but power drills, glue, batteries, and soldering irons are involved. But it will all be worthwhile when you're looking good at the party, no?
Skill level for project: Geek squad
Next: USB Desktop Fan
Republished with permission from PC World (view original version)