"Paint" with white glue the back of the gummy bear. Let it dry.
Do the same with the front side.
Now you have a gummy bear a little bit more protected but still very realistic.
(Here I got tempted to eat it; hold back your self)
Apply a little amount of strong glue (I used hot glue) in the middle, at the back.
Glue there the ring base or the earring base.
You can try this with gummy strawberries, licorice or whatever.