All you need is a bit of spare carpet; we had an extra piece in the garage and I just duct taped the edges to prevent the fibers from fraying. Have your child use a piece of chalk to write their spelling words or practice letter formation on the carpet square. Have them erase the chalk with different body parts--palms, back of hands, forearms, even try feet! Little Bean really liked this! We may have to permanently incorporate it into our spelling lessons!