The first box of 8 crayons was introduced in 1903. Since then over 100 billion crayons have been produced and there are now 120 colors available. Here is a fun project to reuse and recycle old bits of broken crayons and make them into rainbow crayons. It is also a good day to demonstrate to your host children how recycling works:

1 kitchen knife ( only the aupair handles this)

10 used crayons (or more)

several mini baking tins

Chop the crayons into pea-size pieces; keep the colors separate

Preheat the oven to 150 degrees

Fill the baking pan with crayon pieces. Bake 15-20 minutes until the crayon bits have just melted.

Remove the shapes after they have cooled. If they stick, put the in the freezer for an hour and try to remove again. .