when our kids were young, they loved the "circle sandwiches" the Frozen PB&J's from the store, DW got smart and bought a pastry cutter that was round and formed the same wavy edge, we would make up a bunch and freeze them and take in the backpacks with chips, carrots, hummus, etc. really worked well for the picky young DD, swear for a year that's all she would eat at lunch! But like BamaEd, this was pre-bag check shake downs, was real easy to get them in, along with a small bottle of vodka to add to my Dole whip, wait, what? I didn't do that