For opening day tomorrow, we not only turned our refrigerator into Paws (the Detroit Tigers mascot) http://workingmomwonders.blogspot.com/2014/03/detroit-tigers-paws-refrigerator.html, but also made a baseball activity wall.
I drew a field on a large sheet of white butcher paper. Then I painted the grass with green paint. I mixed brown and white paint for the diamond dust. I painted the bases with white paint. Finally, I drew an Old English D with blue glitter paint.
Each ball will become a "game ball" or the activity for the day. The baseballs have various baseball, spring, and summer crafts on the back of them. (Most of which I found on Pinterest.)