When you are ready to carve your Jack-O-Lanterns with your children, save those pumpkin seeds. They can make fun "beads" for your children to string necklaces, belts, or garlands. Or you can eat them. Pumpkin seeds are full of zinc which is great for the immune system.
To toast them, evenly spread them out on a baking or cookie sheet, and bake in the oven at 250 F. for about 20 minutes. If you are going to eat them, flavor them with a bit of sugar, cinnamon, or salt.