We've used the warming tray to melt crayons before but today we did one step before that to decorate our paper eggs.
We used our tiny cheese graters to make tiny pieces of crayon.
Then set the crayon covered paper egg onto the tray and watched the crayon melt.
We also set chunks of the crayons on paper on to the warming tray. When they started melting we used wooden coffee stir sticks, tongue depressors and chop sticks to spread it around and make designs.Two handed method works well.