So I made a doll ring! All you need to do is sperate the 2 metal "bars" at the back of the pin. Then gently fold and fit it around the doll's fore-finger.
That's IT! I doll ring! I am going to buy some more later today... I paid R5 for 2 ($0.60) but I saw bags of R5 for 8 so it depends on what design you choose.
The original post and idea for this ring at Doll Tag Clothing