I was saddened to hear about the recent death of James Randi. The skepticism community owe him a great deal of gratitude. His contributions are too numerous to list here, but his work with his partner, José Alvarez, to hoax the Australian media with a fake spirit channeler, Carlos, has always been special to me.
This is just one example of an big event or commemoration in the general skeptics community that I have wanted to acknowledge on the site, but I can't see how to do it well - and all the ideas I do have, I would rather have permission from the site's users first.
I don't believe the mods can put banners on the top of the site, that Stack Exchange sometimes does. We could probably escalate a request up, but I don't expect that to be very responsive.
We could use the Q&A format to have some sort of special meta-questions that we "ask" that aren't really questions.
We could allow/encourage artificial questions on the site (e.g. Q: Could the Great Carlos channel spirits? A: No, it was a hoax designed by the late James Randi, who also did all this other stuff.)
Any better suggestions? Any ideas from other people that you like? Would you rather we didn't acknowledge such events and maintained our focus on Q&A?