Coin Display Stand

Driven by the need to display collected coins. Combined the beauty of a equilateral triangle and the stability of a square.
This coin stand will sit a 58mm diameter coin, with a 10mm depth, comfortably. The whole structure is light at about 24g. I created it with a hollow core to reduce the amount of print time needed.
I had also intended the hollow core to be filled with a denser material, like clay. Two slight protrusions at the base of the hollow core will keep the clay struck within withou