I went about eight months without an avatar.
My first one was an abstract metal sculpture.
I've also had The Thinker, a Beatles picture, two Doraemon pictures (including the one I have now), two Camus pictures, and I believe that's it.
I just changed mine to the Doraemon movie that will come out in Japan in March of 2010. It's Eiga Doraemon Shin Nobita to Tetsujin Heidan ~Habatake Tenshi Tachi~ [in romaji], and it's a remake of the 1986 Doraemon film, Doraemon: Nobita to Tetsujin Heidan. It'll be the first Doraemon movie released in 3D in Japan, also. Wish I lived there...
Yeah, so I thought it would be nice for people to post a bit about their avatars and why they chose them (after the fact), so I created this thread.
Even if you didn't recently change your avatar, you can still post and tell us about it.