Just because I had to, I have created three LJ communities in honor of the LJ BOF session at SiliCon:

wetsuitpaintbal
Thanks to johno, who suggested there may be a community of people who enjoy wearing wetsuits while having paintballs shot at them.

n_abusersanon
Nitrogen Abusers Anonymous, which was suggested in a roundabout way by N-aholoic extraordinairre  Doug B. (whose LJ name I do not know, but johno and figmo do).

And my contribution, the ever-popular 40plusiso20plus