According to this case study sent in by Panda Correspondent Trevor, black & white is a good bet for logos. And, do you know what are black & white? Pandas!!
Mental_Floss has a round up of 11 zoo posters created for the WPA, including this panda gem. Looks to be a bit of a sad panda, no? I suppose it was the Great Depression.
But then, there's also this panda, who is having waaaaaaaaay too much fun:
Due to the recent destroying of Google Reader, Trevor [now I really don't know what to link you to!] had to find a new way to share panda finds with yours truly. Luckily, he's found a way, but it's nowhere near as fabulous as sharing on Google Reader used to be!!