I was asked to explain my avatar, so here goes:
There are actually a couple of different things going on with it. Because my handle is mrklixx (which is another dumb story), I think of the gears going click,click.click. Also since it is basically "gears behind klixx", I think of it as the gears in my head clunking around.
Concerning avatars, I am of the opinion (obviously not a popular one, surprise surprise) that one should not change their avatar often, if ever. Because, to me, it is basically your "face" on a board. When people change up their avatars often, it can be a bit disconcerting.
I have, however, wished for a long time that we were allowed to have small pix in our signatures. Because that
is something that I would be apt to change to fit the mood.