Hat-tip to Matt for the tag. If you want to make one of these yourself, leave a comment/link back here.
Update: Bora shows us what telecommuting looks like, Julia is hard at work in the library introducing Tyrannosaurus to some modern country music, and I’m sure more will show up throughout the day.
Laelaps 
That’s really cool – thanks for the link. Have posted mine, and hopefully earned you some “Coinz”…
Hmmm…now I’m going to have to make one…
I am no longer hard at work in the library – I’m gettin’ down with Rodney Atkins in the Cretaceous period…
Someone tell PZ they have a cthulhu sign.