Add me to the necklace crew. You'll need a chain about 20" long, with links large enough to work with; depending on exactly how the earrings are put together, you may also need some small jump rings for attaching them to the chain. Remove the earwires and attach the earrings in whatever order pleases you; with a bunch of different items like this, I'd probably go for the "clustered at the center" look, possibly with more than one earring attached to each link.