In a microwave-safe container, have your kids mix together two parts coconut oil to one part wax beads. (For example, 8 tablespoons coconut oil, 4 tablespoons of beeswax).
Microwave the mixture on high at 30 second intervals, stirring in between, until the wax is completely melted and the solution is clear.
Cool the hot liquid briefly. If it gets cloudy or turns white, you’ll have to reheat it in order to pour it.
Add in 6 - 10 drops of Rose Geranium (or other lipsafe essential oil like Lemon, Lime, Lavender, Peppermint, Bergamot, Blood Orange or Cinnamon) then add food colour if desired, stir and pour into a small tin, jar or lipbalm tube.