I was wondering how I can embed items into casting molds for bangles and make sure that the items are totally covered with resin? Like candy sprinkles, glass beads, small toys, glass, stones, transparent pictures, etc. I want to be sure that the entire finished bangle will appear to be filled with the items I am putting in them but I also want to be sure that the entire surface area will be resin and no corners or edges of the items will be poking out at all. Is there a trick to this?