Recently, I explored different ways a data entering with a stepper control. One of the ideas looked crazy and interesting at the same time. It was a fractal stepper. I have no idea how it could be useful for a real project (I guess it should be another exploration for this), but I think it's funny enough.
By the way, this 3d control could be used for AR and VR interfaces.
Here you can try limited interactive version of this concept — https://framer.cloud/uqzfa/
Also, don't forget to check a full idea in an attachment.
UX: concept tools: paper, muji pencil.