Now I made a kid-friendly option as I thought they would be a great idea for pressies. My little girl loves to give presents to her friends at Xmas time and I always insist we go handmade, and this one was brilliant. Cheap, quick and quirky. I think I spent $6 all up, and we made 20 of these bad boys.
A sheet of foam
String for the necklace
Blackboard spray paint
Trace your shapes (I used biscuit cutters) and then cut out.
Thread onto your necklace string.
However if you don't want to go for the kid version....
Jen and Row