The 3D program Blender 4.5 was released. It offers long-term support until 2027, better node handling and should render more efficiently than its predecessor.

Or, using these models and sending them over to a 3D printer straight from Blender itself. Not bad for free software!

With Blender, you can model using a preset basic mesh object–cone, cube, cylinder, sphere, torus, etc.–that you can extrude and reshape.