This project is so simple, I feel like I'm teaching you how to butter bread. To mold chocolate, all you need is a mold and chocolate. Bear in mind, you have to use chocolate that was designed for the task; don't use chocolate chips from the baking aisle at the supermarket; they won't melt properly. There are many brands available…Guittard (I grew up near the Guittard factory; the smell was unbelievable).
Pearl Dust works well; just brush it on.