In a large bowl, mix together eggs, cinnamon, pumpkin, flour, salt and peanut butter. This mixture will become stiff, dry and crumbly really quickly when first mixing.
Add a little bit of water to help moisten the ingredients, then you will be able to work and knead the dough. Only add a tablespoon or so as you go. You want the dough to end up being a dry and thick consistency.
Roll out on parchment paper to 1/2" thickness and use a cookie stamp, like dog bone.