Get some Leather scraps. You can get your leather from an old shoes, wallet, leather belt, jacket or a leather couch
Cut a strip or leather for a future ring. Wrap it around your finger to check the right size.
Punch two holes on each end of the strip.
Sew it together with a bright thread.
It will be a good present for your friends. Or just a funky casual ring for yourself. Easy to make.