The design for these math-related coasters was inspired by Mathologer's video entitled "Times Tables, Mandelbrot and the Heart of Mathematics"

Video is located here: https://www.youtube.com/watch?v=qhbuKbxJsk8

The essence of the video is that interesting and beautiful shapes emerge when lines are drawn around a circle between equally spaced numbers and the multiplication of these numbers by some arbitrarily chosen multiplier modulo an arbitrarily chosen base.

I chose to create coasters using a few of Mathologer and my own choices of base and multiplier.