Here's another Faux Bone (c) ring - designed to intentionally look like you are wearing a band-aid.
From Faux Bone
It worked - my son asked solicitously if I had cut my finger! It is actually quite comfortable to wear. My DH hate it, my daughter think's it is "strangely appealing" - and she hates the sight of blood.
Simply made, it uses Faux Bone's properties of strength and ability to shape when hot. NOTE: Faux Bone by Robert Dancik is available exclusively at fauxbone.com.