Of the 7 essential meta questions for every beta site, there's exactly one that has never been asked here. What should our logo and design look like? Anyone have any ideas? As we are probably getting fairly close to the end of our beta period, let's start throwing some ideas on the wall and see what sticks.
Just for clarification, the logo should be recognizable at 16x16 pixels, but still look cool when seen from a larger size.
Background information: every site receives a custom theme done by a professional when it leaves the beta period. Stack Exchange's official designer is Jin; the beta look, the Area 51 look and the look of most launched sites are his handiwork. The theme will be heavily based on community feedback; this thread is a first round of suggestions.