A convex polyhedron without Rupert's property

[robinhouston]

https://arxiv.org/abs/2508.18475

[bediger4000]

I could not find a Rupert's cube for sale, only thingiverse files to print one. Seems like a missed opportunity, given that you can sell Gombocs at hundreds of dollars each.

[pavel_lishin]

They came up with a great name for it.