Wall Art

Yesterday my son had another first... First time using markers on doors and walls. Most of it was on his bedroom door (which was easy to clean off since it is oil-based paint) and featured Mickey Mouse and letters of my son's name. On the wall in his room he drew an "A" which we weren't able to get off and my husband claims he's going to keep there until our son is a teenager and then he'll tell him to paint over it. We'll see if that happens! Too bad we aren't in prehistoric times so that toddler wall art would be appreciated.