Polymer Clay Rings

There are many molds on the market for use with precious metal clay and resin; commercially manufactured, as well as privately.  For me, they are on the pricey side.  But, I have been wanting to make some "formed" polymer rings so, to cut costs, I ordered one discounted "imperfect" mold (on the right) and one perfect one (on the left) from a private seller.  They are OK.  I would not invest again.  The one on the left is too thin at the "points" of the ring where it stretches the most during release and the 4 on the right are too thick to wear as rings.  I love the triangle ring and will make it work, but probably won't be making more.  But, who knows.