To make a Fried Marble Necklace you will need:
-approx 17 gauge wire
-glass/metal/some sort of strong glue
-necklace chain or cord
-frying pan/toaster oven
Marbles in the frying pan. I will be honest with you guys though, this did not work for us. We couldn't get them hot enough and heated all throughout. We ended up putting them in the toaster oven at 450° F for as long as you're willing to wait (at least 20 minutes). Move around occasionally.
As quickly as possible, move marble from pan into ice water. This is what causes the pretty cracking inside.
Using pliers, make a small loop of the wire around the necklace chain. Then work around the loop to form a spiral as big as desired. We used steel wire. For a more polished look, use sterling silver wire.
Gently pull the wire down away from the loop to form a dome shape. You can also make more elaborate cages for the marble. There are plenty of tutorials on the internet if you're interested.
Glue the marble into the cap, and allow to dry. We used Amazing Goop's Craft Contact Adhesive which "glues whatever, bonds forever."
And there you have it! Looks pretty doesn't it?