Using Autodesk 123D Make (alternate download link), I converted the Class 1 & Class 2 drones from the Descent video game to physical models.

If you'll want to download these models for yourself, be prepared for some complications!

• First, you'll need to use the Internet Archive Wayback Machine to acquire the files.
• After that, BRL-CAD is one of the few programs that can properly convert the unusual 3D model structure into .STL files for import into Autodesk 123D Make.