Grow a Lima bean plant in a CD case. Then label it with a paint pen. So clever, A sharpie would work too! I wonder if the super thin case would work as well as the older thick? I think you would have to find a very thin bean!
A DIY baby mobile that could be made from some quilt batting (for the cloud) and colored paper or felt (for the raindrops). This Mobil could decorate the area over a changing table (a conversation starter for teacher and baby (Early Ed.