Too many broken crayons? I think I have a few boxes full. Sort spring colors out with your little helpers, then melt shavings on parchment paper in the lowest setting of your oven. When the crayons begin to spread, remove from the oven and allow to cool for 20-25 minutes until hard again.
In these spring shapes, my little helpers and I sandwiched the crayon melts in packing tape then inside the card stock cutouts.