I’m a knitter. Here’s a scarf I designed and made to declare my geek affiliation:
http://members.shaw.ca/empidonax/knitting/green_lantern_corps_scarf/green_lantern_corps_scarf.html
I’ve been on a bit of a sock-making bend recently. I’ve also made some ridiculously oversized stocking caps (up to 7 ft long), a bunch of regular-sized toques, wrist warmers, and a season 18 Doctor Who scarf (the red one).
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Gaultheria's fanvids: http://youtube.com/sagethrasher