I made a set of Rivoli Kaleidoscope pendants with a sapphire rivoli for the center, and aquamarine and crystal AB one-hole rivoli pendants. The three pendants differ by the size of the center rivoli, the number of beads used, and the fold of the rotational symmetry of the pendant. The first follows the original pattern, and has 8-fold rotational symmetry:
reflection symmetry. Can you find all of its axes of symmetry?
The Rivoli Kaleidoscope pattern is available exclusively at my website if you'd like to make your own.