If you're looking for ambient lighting so unique you'll likely be the only person in your part of the country to have it, this amazing DIY fibre optic star map is tough-to-beat choice.
Instructables user MrTick wanted a unique light source and an impressive surprise for his wife. He accomplished both ends by building a fibre optic star map that's actually a representation of the night sky visible from his home. His DIY guide includes all the hallmarks of awesomely geeky DIY work: dismantling consumer products to make new things, fibre optics, schematics, LEDs, soldering, and heat shrink tubing. Unlike many awesomely geeky DIY projects, however, this one came with a high wife-acceptance factor.
Hit up the link below to see how he transforms fabric, a fibre optic Christmas tree, and some miscellaneous parts like LEDs, wire, and heat shrink tubing into an absolutely awesome fibre optic star map for his bedroom.
Star Map [Instructables]