There are quite a few holders here inspired by print in-progress coaster but they all seemed a bit too clean to me so I made a bit messier one to show off what printing is all about.
I couldn't print it myself yet as my printer is missing a motherboard at the moment but I should wire it in soon to add some pics.
Fixed the export to make it smoother and made sure it fits.
The author marked this model as their own original creation.