These are growth charts in the making. I went to Home Depot and had a 1 x 6 board that was pre-primed cut into two 3 foot lengths. I bought scrap paper at Hobby Lobby.
One of my grandkids is going to have a Cowboy Toddler theme in his room and the other grandchild has all different bright colors to go with his black and white theme room posted earlier.

I bet by the time they are 5 feet tall, they will no longer want them in their room!