So here is what I did:
These are the earrings, you can see they look a little old, I have them for 8 years (bought them in Greece) so we can't blame them for looking like that.
2. Took some clip earrings and cut out 2 leather circles, silver leather to match the earrings;
3. Added glue and let them dry for 10 minutes;
Here they are, all brand new and ready to shine!