Dotty May Illustrations - I had an idea for a time-themed mandala, but once the hourglass and the inner workings were done it seemed more like it should be clockwork. Anyway, hope
Hourglass Multilayer SVG/ Hourglass Cut File/ 3D Layer/ - Etsy
How to draw MANDALA art for beginners/ step by step/Hourglass, rainbow mandala - YouTube