Nocturne Pendant by Klara Borbas. Each concave polymer disc is a different shade of gray. Some has a Mother of pearl sheen. The polymer piece is attached to a stainless steel wire that hangs on a rubber cord with silver clasp.
Lay down big puzzle pieces and spray paint over them. Wait until they dry to take the off. These would make beautiful autism awareness shirts. Autism Speaks is bad news bears for actual autistic people! Cool shirt though.