We always like the selection of rugs at CB2, and often find choices that work well in a child's room. We think this pegboard rug would be an excellent choice for a few reasons...
First, cleaning is very low-maintenance- you can just spot mop it with soap and water. Second, it's really two rugs in one because it's reversible orange or grey. This can definitely go from a child's playroom to a teen's room or even an office later on. It's actually an indoor/outdoor rug, so it could even have a third life on the patio. The pegboard design is just the right amount of whimsy.
Designed by fashion designer Liora Manné, it's available here.

Shaw's Original Fir...
My son's room is done in a "tool" or workshop sort of theme. This would have been cute!
I think it could get gross down inside the holes- even though you can "mop" the rug, it would be hard to keep looking clean.
http://thesweetest3.com/
@catcam I am going to have to agree with you on that!