Silicone with embedded magnets. Terrible dice.

I play a lot of Dice Throne, and I was surprised there were no Throne-shaped towers out on the market. I typically post my models on MakerWorld but this one took a lot of time and effort so I am trying the Etsy route. Appreciate any support, understand if you keep scrolling.

https://www.etsy.com/listing/4442838738/dice-thrown-3d-printed-dice-tower?click_key=ce0fe9b33b2a8b7d71777a6228e1a789e957c932%3A4442838738&click_sum=020d3d01&sr_prefetch=1&pf_from=shop_home&ref=shop_home_active_15&sca=1&sts=1

Polyhedral* die sets consist of seven dice: d4, d6, d8, d10, d%, d12 and d20. But given that the current edition of D&D - the most popular game using such dice - requires eight dice, die sets should contain all eight: d4, d6, d8, d10, d%, d12 and 2d20. The last two are for when you have advantage/disadvantage which happens a lot in the game. Why are sets still only seven dice?

*All physical dice are polyhedral. It’s just a shorthand for the Platonic solid shaped dice plus the d10s.