Then it’s not too late to get this fabulous ornament for it:

Even if you don’t have a Christmas tree ever or any more, you can still help out with the James Randi Educational Foundation’s fundraising campaign. The JREF has been awarding grants to teachers and students to promote critical thinking, provides lesson plans and curricula, and makes all kinds of tools available to educators, all to help improve the minds of people all around the world. It’s a great cause, and they’re struggling right now like all charities in a bad economy.

I’ve got one of those ornaments on my otherwise entirely squid-based theme of holiday decorations, and it looks great there. The JREF goes well with everything!