My kids' favorite
When they were small and I was working way too much, I used to make several varieties of pb sandwiches assembly line style. The most favorite of all among my kids and their classmates were the cockroach sandwiches, served most often with "bug juice" as follows:
Mix creamy peanut butter with "plumped" dark raisins in any proportion you wish. Spread on bread and cut in any shape you desire (I used a lot of cookie cutters and when in a hurry just used a large knife to halve or quarter) Wrap in plastic wrap, fill a plastic freezer bag with them and freeze.
When ready to use, put them in a lunch bag with a container of "bug juice" (green coolade) and by lunch time the sandwiches are thawed and the bug juice still cool.
My guys had all their friends totally convinced we had monthly cockroach roundups at our house so we could make those sandwiches. I guess it was fortunate the teaches never fell for it.
Lots of Fun!