As our first project with our wonderful surprise leaves we made some fall leaf puzzles.
We took Maryanne's (Mama Smiles) suggestion of covering the leaves with Mod Podge for the sake of longevity, and also to make them less brittle. It worked great, and also gave them a pretty shininess.
I cut each leaf in half and gave M and G turns at putting them back together. It really was more of a four-year-old kind of puzzle than a 2-year-old puzzle. (G wasn't as sure when she actually had the leaf together correctly and needed a lot of help)