The polyhedron I chose is the hexagonal antiprism:
https://kitwallace.co.uk/polyhedra/solid-index.xq?mode=solid&id=HexagonalAntiprism
It has 14 faces and 12 vertices- 12 of the faces are equilateral triangles, and 2 of them are hexagons.
I was intrigued by the word antiprism, and the hexagonal antiprism was the most interesting polyhedron under that category that was not concave. There were some very intricate antiprisms that I thought were cool and I played around with a lot of them in openSCAD, but this one had a valid flat net with no overlapping of faces (that was a problem with the shapes with any concavity) and it was the one I printed and folded for lab 6. The hexagonal antiprism has two parallel hexagon faces, rotated so that the corners line up with the center of the other hexagon's edges, and not directly with its corners, and triangles wrap around the gap between the two hexagon faces. I think it's visually pleasing but not too complicated, and I have a fondness for equilateral triangles.