While experimenting with Christmas Gift ideas for my sister who wanted "something hand-made in a gingerbread theme" I came up a potential lesson idea.
Roll out a slap of sculpey. Use cookie cutters to create lots of flat shapes. Press into mold and bake. This could also be a cute collaborative project done the week before. Have each student make one, press it into the form and then give to the homeroom teacher as a class gift.