I got a crescent moon from Kelly, it's fantastic. I had a pyramid made for my Mother at a local jeweler back in the mid 90's. She wore it everyday until the day she died. Now I wear it.
Here is a discussion about Stevie's famous "3" necklace too. I haven't seen it on her since the 80's though.
http://ledge.fleetwoodmac.net/showthread.php?t=14433