Easy homemade ornaments

A parent sent a box of three kinds of foam ornaments for my class to make for this Christmas. Each had a place to glue the child's school photo to it, adding to the value of the ornament. Well, one of my students helped me sort all the pieces and place them in the appropriate piles. Then each student was called back to choose from the three, then collect all the pieces necessary to make that ornament. No instructions were given, only colored pictures of the finished products. Must say that some of the ornaments are very original, sharing only the pieces used for it with the picture. And the students would not wait for them to dry. "Teacher, mine keeps coming unglued." Teacher is coming unglued if you don't take your hands off of them and allow them to dry completely. It will be a miracle if the ornaments hold together long enough to survive hanging on the tree in our room, then the journey home in those cavernous backpacks.