All the pictures of these mini Easter, or spring, terrariums are really cute so be sure to take a look. And, since, the only plant is an air plant, you won't have to worry about keeping it alive! Find all the information at My Own Ideas.
I think these origami bunny boxes at Origami Spirit are so cute and a great way to decorate for spring or Easter. Origami can always be a little tricky so you may want to practice a few times before showing the kids. This link is a video tutorial which is really helpful too.
This butterfly mobile looks so delicate but because each butterfly is dipped in wax it is weatherproof! I really want to make one of these, if only to hear the gentle sound of them brushing against each other. Visit Growing Up Creative for the full tutorial and more pictures.