So, here's how we made them, everyone was given a little placemat to work on. We started out forming the marshmallow, since I found on my own first attempts that if you start with the other components, the tan and brown clay leave residue on the mat, and the white clay picks it up as you try and make your marshmallow.
After the marshmallow the kids used these little dowel rods as rolling pins, and rolled out their graham crackers, then cut them with the mini square cutter and used a toothpick to make the characteristic line down the middle and small dots. For my first attempt at making them before the party, I used a small cardboard square as a template to help make the graham crackers the same size. I thought this might be a little tricky for the young children at the party. At Michaels I was pleased to discover that they make little cutters for polymer clay. The square one worked out great for the graham cracker and the chocolate square.
The last part was the chocolate, rolled out and cut the same as the graham crackers and then we used a toothpick to make lines for the chocolate bar sections.
After all three pieces were done they stacked them together, I cut and added a little jewellery eye pin from the craft store and then I baked them in our toaster oven for 30 min. according to the package instructions. After they cooled I added a little jump ring, and the key chain hooks. (Our campsite had electricity hookup and I made sure to also bring an extension cord.)