Number magnets to keep track of kids you allow to leave the room. Use a cookie sheet with glass stones glued to scrapbook paper and a magnet. then trim in fun duct tape! (The cookie sheet magnet board is pretty sweet for multiple different crafts.
Organization is key, and many items in our classrooms and homes are sitting idle when they could easily be repurposed to aid in the effort. Do you have old plastic containers from the grocery store, milk crates, or old hardbound books? Use them as storage