This necklace is awesome. I love Alice in Wonderland and Through the Looking Glass, and I always loved the Hatter and the March Hare. This wonderful necklace from JezebelCharms on Etsy captures the mood of Wonderland beautifully.
Browsing through her shop, you can find many items just oozing with geeky charm. Like another really awesome steampunk necklace with a Doctor Who theme.