I had never made silhouettes before. So I am not sure if I did it the right way- but I did it my way and it worked. I took side view pics of the kids and then colored them in with a sharpe. Then I cut then out, scanned them in my computer and played with them a bit until I was able to print them out on cardstock. Then, I cut it to fit in the bottle cap and had this resin- hardener stuff from another project that I poured in each one and let dry. (you can see in the pic how this one for my mil sits on. You can also tell- I wasn't finished with the bottom bottle cap yet).
I liked them so much-I made one for myself.
I printed my kids silhouettes on old book pages instead of cardstock.
I am not a jewelery maker- but I sure am happy with em!