Jonny-B

WFC 3D Generator is a free Blender add-on that runs the WFC algorithm to generate 3D objects from building blocks in a source collection, offering constraint editing, grid and offset controls, and pausable rendering.

Sierpinski Triangle is a Blender add-on from Jonny-B that generates 2D Sierpinski triangles and 3D Sierpinski pyramids. It can stack any mesh into a pyramid, with the generator added from the 3D Viewport's Add > Mesh menu.