6 years old
Make your own Hedwig (Owl), Trevor (frog), Aragog (spider) Mr. Tibbles/Crookshanks (cat), bat (just because) or lightning bolt (for Harry) shaped refrigerator magnets.
Thin sheets of craft foam
Roll of self-stick magnet strips or squares
Cookie cutters (optional)
Take the sheets of foam, use cookie cutters or make your own pattern.
Have the guests trace and cut out their own shapes.
Use a roll of self-adhesive magnets cut into small strips, stick a magnet to the back of the foam shape and voila! Your own magnet!