I have very tiny fingers, so if I want to wear rings I have have to do them by myself..I wanna show you a very easy way to make ring bases out of leather or felt.It is so easy that I don't really know how to describe it.If you didn't understand anything please ask!
Find something that has the same size as your finger (I used mascara)
Wrap your strip of material around it and glue or sew it together. I made two layers to add stability. Let it dry if you glued it or just take it off.
Finished! Now you have a leather/felt ring base! Decorate it how you want. For example you could make a bow or flower out of leather scraps as I did or use pearls, sequins,etc. There are endless opportunities!