Instructables user AudriusA1 shows us how to create this unique ceiling lamp that sort of looks like the Death Star from Star Wars. The $69 IKEA PS 2014 lamp already sports that unusual cutout design, but to open and close the shade, you have to pull the lamp's strings. (The lamp's designer, David Wahl, says he was inspired by science fiction movies and video games, by the way.)
In the hacked version above, engineer AudriusA1 replaced the string with a DC motor and added an Arduino micro-controller to operate it. You can control the lamp's movement precisely with the remote control, save three position settings and have the lamp remember the last position when you switch it on. A fun and also practical use of your Arduino skills.
For the full parts list, instructions and Arduino code, head to the link below.
Remote Controlled IKEA Death Star Lamp [Instructables]