I am very pleased with the silicone molds that I just tried out. I ordered a few of them from molds.etsy.com
I have posted some photos of the results from playing around with them. I have a frog, flower, butterfly, and turtle. This etsy shop makes tons more I think I will be getting some bumble bees next! At first I made the mistake of using too much sculpy clay (terra-cotta color) I thought I would have trouble popping the forms out from the little molds. but, no problem with that. Nothing sticks to this silicone stuff. I really like the molds a lot. I am sure I will find lots of ways to use the nature shapes. Now to paint them and make them look real. I hope.
so check out www.molds.etsy.com and see all the array of different molds for making charms or clay pieces for decoration of what ever you want.
They also have a shop on etsy for silver charms and handmade glass pendents. I do recommend this shop owner. the delivery was fast and the prices are very good too. Glass pendants- www.imagesunderglass.etsy.com
silver charms - www.charms4you.etsy.com
check it all out sometime!