What is this A crust cutter. What on earth do we need a crust cutter for Just for fun. Think about your child finding his way through this maze, trying to put this jumble back together like Humpty Dumpty and succeeding! The crust cutter is a breakthrough in useless technology - where you had a square sandwich, you now have a bits and pieces sort of thing that your child delights in. It's all about fun and game playing, puzzle solving and eating your sandwich too. The crust cutter is made of food safe, dishwasher safe, engineered plastic, which is packaged in a recyclable, peggable clear PET box. Don't forget to pick one up on your way out!