One of the more basic and interesting shapes (spaces) in mathematics is the torus. We typically describe is as the surface of a doughnut or bagel. That it is mathematically different from the surface of a ball is a good entry point for a lay explanation of some fun higher mathematics.
Speaking of a bagel, here is an interesting video on a way to mathematically play with your food:
A Mathematically Correct Breakfast
Buon appetito!!!