I love geeks. I love clever people. I love sciencey stuff.
So this fills my heart with squishiness: a skirt with rows of lights that illuminate when facing north:
Make those LEDs red and every astronomer could use it. Not to mention campers, hikers, and let's face it, nerds like all of us. I would dance all night with someone wearing this.
Want one? She's selling kits so you can make one yourself!
Of course, in 2012* when the poles flip the skirt will light up when facing south. Oh! I know! You could wear it backwards. Problem solved.
Tip o' the compass needle to that bon vivant, Josh A. Cagan.