Colin Purrington, biologist and friend of Charles Darwin (Axis of Evo & Charles Darwin Has A Posse & evolution tattoos) has suggested that folks create evolution-themed postal art for Darwin Day 2010 as a way to spread knowledge of evolution.
Darwin Postal Art
I put together this postcard, using an illustration by John Hawks and a quote attributed to Huxley about being “Darwin’s bulldog.” Here is Colin’s call for Darwin/evolution postal art. I see Richard beat me to it.
Colin, this postcard is in the mail to you now!
The Dispersal of Darwin 