I LIKE CHEAP OR FREE SOFTWARE THAT ARE SUPPORTED WITH UPGRADES AND HAVE A LARGE USER BASE:
Blender is a free and open-source 3D computer graphics software product used for creating animated films, visual effects, interactive 3D applications or video games. Blender's features include 3D modeling, UV unwrapping, texturing, rigging and skinning, fluid and smoke simulation, particle simulation, soft body simulation, animating, match moving, camera tracking, rendering, video editing and compositing. It also features a built-in game engine.
Tinker CAD (a program from Finland) is a new online simple CAD program. I believe it can be used for 3D printing and it can also create SVG files. It could be that this simple CAD program could create files that could be laser cut....maybe only!
still a coool little program.