Geek Christmas Tree, originally uploaded by cambodia4kidsorg.

While the Pac Man Christmas tree is indeed most excellent, it doesn't exactly score high on the environmental sustainability scale.

That's where Portland's Free Geek program steps in. As nonprofit tech consultant Beth Kanter explains, the tree pictured above is made out of recycled computer material and CDs.

And here's another example of the program's creative dealings with e-waste: "a Chinese New Year's dragon made from the paper inside of printer drums."