When Friendly Plastic is warm all manner of beads and sprinkles can be embedded into it. Simply heat Friendly Plastic with a heat gun or other dry heat method and sprinkle on the tiny beads, or glitter from the Sprinkles Tri Packs. Push or roll in to the warm plastic. Make sure that the beads have gone through the foil surface and into the plastic behind.
Larger beads can be pushed in too, they need to go in far enough for the plastic to be able to grip on to them when it is cold. If the bead is large, sometimes it is best to pop it out when the plastic is cold, add a spot of glue and replace the bead.