I don't know if I'd call Samimy's conversion of a non-functioning internal hard drive into a cell phone/flash drive charger desk dock an easy project, but it's surely an impressive feat of DIY reuse. The results are very steampunk (video below)...
- LED desktop lamp. You can turn it into a light source for studying or a monitor light.
- Penholder. Keep track of all of your pens on your desktop!
- Cell phone stand and charger. It can hold your mobile device and charge it via USB at the same time as soon as you connect the cable.
- Hidden flash drive. You can have an undetectable flash drive that the computer cannot see, unless you trigger the LDR sensor by a single LED flashlight. The flashlight generates a small signal on the LDR surface and that small signal is enough to BASE Biasing of the transistor to allow a significant current through the relay coil and turn on the positive DC source for the flash drive.
Images and video: Samimy Productions