This is a bone Giant dice tower sculpted in Blender for Mad Goblin Workshop. The attached video includes a timelapse of most of the process (trimmed for viewing pleasure).
https://www.youtube.com/channel/UCFlgD2qstnOMoycSnoUuuYA
The model is intended for 3D printing, which you can totally download the STL and print one yourself! Link is in the video description.
Making a BONE GIANT Dice Tower!