I've put all the suggestions above, in slack-a-gogo's recent thread and the ones from the wiki on little pieces of paper in a plastic baggie. I have drawn the themes for the next four fridays from the baggie. They are as follows:

* January 25: My Kitchen, suggested by iconomy
* February 1: Sanctuary - A favorite place, a park, a cafe, wherever you go to relax/feel safe, suggested by seanyboy?
* February 8: Red/Blue, suggested by ethylene
* February 15: Something that amuses you, suggested by youngergirl44