I hung some toys that were meant for the baby carrier over the changing table, and drew some pictures in black and white and taped them to the wall. DS loves them; he "talks" to the toys (which have bells in them, so if he waves his hands and they hit the toys, his eyes open so wide and he smiles and squeals!) and could look at the pictures for hours. I draw a new picture every week or so. Sometimes I show him his stuffed animals while he lies there.