made these rose rings yesterday, which wasn't too difficult. All you need is some clay, primer, colours to paint glass (because they make the ring look really shiney), a glue gun and an old ring that you don't need any more.
First of all, I took the clay and formed little roses out of it. If you don't know how to exactly do this, watch this video here. After that, I primed the roses with the white colour and finally, painted it with the colours to paint glass. The last thing you need to do is to glue the rose on the ring, and you're finished.