Nick Dawkins has made an interesting spinning LED device. As it spins it can display the time and a picture of the globe.

Watch the video.

“My device uses 19 LED’s and a 24V motor for the main drive. For an easier build I decided to use a battery to power the PCB and LED’s. If enough interest is shown in this device, I will update the site with full build instructions and make the final source code free to download.”