one, I usually opt for a gold necklace. Here is a simple DIY made out of bronze washers from the hardware store.
Materials: Various sizes of bronze washers (if you can't find, spray paint normal washers), pliers, jump rings, chain. Lay out the design you want in washers. Connect washers together with jump rings. For the sides of the design I used three jump rings between each washer. After connecting all washers, add chain!