The Met has this tiny 1500s ivory bead that hung off a rosary — turn it one way, it's two lovers holding hands. Turn it the other way, same pose, but it's a skeleton. There's even a tiny carved salamander and a plant motif most people miss.

I turned it into a wedding ring for the year 2125, when you can basically choose not to die. The ring looks like an embrace from one side and a skull from the other — same idea, 500 years later, for two people choosing to grow old together instead of living forever.