The One-sided die is a one-side scratched coin.
The Two-sided die is a coin.
The Three-sided die is a three blade propeller.
The Four-sided die is a pyramid with a triangular base.
The Five-sided die is a pyramid with a square base.
The Six-sided die is a cube.
The Seven-sided die is a pentagonal prism.
Draw each of them on paper and we’ll build them in wood on this workbench.