1. Venn diagram pizza
The left circle: bacon and mushroom.
The right circle: red pepper.
The intersection: flavor explosion.
3. Menger sponge cake
The Menger sponge: Cubes cut from cubes cut from cubes.
4. Sierpinski carpet cookies
The Sierpinski carpet is similar to the Menger sponge, wherein a square is cut into subsquares, but it is not three dimensional (even though these cookies technically are).
5. Sierpinski candy corn triangle
The Sierpinski triangle is a self-repeating fractal made from one equilateral triangle that breaks down into smaller equilateral triangles.
7. Polyhedra pumpkins
Leonardo da Vinci loved the polyhedra because you can see the front and back edge of a solid at the same time.
10. Pythagorean cheez-its
OMG the total number of crackers in the two smaller squares equals the total number of crackers in the larger square!