A hidden picture lamp, utilizing lithophanes. Note: this does not use an actual hidden picture! It is a piece of plastic where the thicker spots absorb more light (black) and the thinner spots absorb less light (white) giving a photo effect.

Lithophane source: http://www.thingiverse.com/thing:74322

Less work / More work:
Less: A remix (Remix 1) is included with a single level LED tower. This remix cuts the lamp height in half, and thus reduces the build time.

More: Once you are done with developing and printing the lamp there is a Round !! (Yes, Round "double exclamation point"). Cut off the IR remote control sensor and replace it with a WiFi sensor. This will enable you to control the LED strip with your WiFi connected devices, such as your cell phone! Here is a demonstration: https://youtu.be/QEek-LAnwTg