Just as a first, it’s generally asked that no one ask for the plans to things shown.
However, to that end, here are a number of towers for the rolling of a die that are readily available:
That third one has the requirement that you post a pic of the copy you print. And you have to customized it by printing a design on it somewhere.
Magnifying glass and a quick “dice tower” lead to a plethora of ideas.
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