Look, I inspired a thread and didn't even know it...
What usually inspires me to change is boredom.
2 Avs ago, I had sort of a glowing guy that I thought was sort of cool for a psion.
The last one was a Githyanki, again due to their association with psionics, and the fact that I have always thought the cover of the old FF was really cool.
My current one is sort of a veiled commentary, but I'll spill the beans. It's Rimmer and Mr. Flibble. For those not familiar with Red Dwarf, Rimmer is a hologram. The picture is from an episode where he gets infected by a holovirus that drives him crazy and adopts a hand puppet named Mr. Flibble that Rimmer used to blast people with his hex vision.
It just reminded me of someone here who used a hand puppet to attack people...