Several years ago I bought this big black ring in Japan, made out of small black pearls, looking a bit spiky but most of all looking like a nice piece of art on your finger (bought it actually at a museum in Tokyo). It wasn't expensive but I have lost it last year and ever since I have been looking for something to replace it with.
Last weekend I have tried this crochet ruffle ring and it came close to the ring I have lost. These ruffle rings are easy and fun to make, without taking too much of your time to finish them and you can make them in as many colours as you want to fit your outfits. They are great to wear and they attract attention when you are out and about.
You can purchase the pattern here at Etsy or on Ravelry.