I made some charm clusters using vintage religious medals in combination with other vintage elements. They were a huge hit at the Art Fest this Spring. People had so much fun choosing which cluster they were going to add onto a chain they already had or one of the vintage brass snake chains that were available separately. Most ended up leaving with more than one cluster!
Here's a sampling:
You could use a cluster to freshen up a drab set of keys with something vintage! I have them listed in the Etsy Shop, so click your way over HERE to make a one-of-a-kind, new-old necklace.