I just need an arc wielder, lots of metal, an a ready source of salvaged motors and heating elements... hmm. This might be slightly out of my reach.
The Precious Plastics people appear to be the same folks who a few years ago were promoting the idea of a modular phone with parts that you can replace on the fly, a good idea that was only several million dollars of R&D away from being viable. Going even further back they had the idea of a vacuum sphero. And where are these great ideas now? Listen, I'm not going to judge them for unfinished projects. Heck, if I were judged by unfinished projects I shudder to think of the ramifications. I just point this out to illustrate that these guys are big on ideas, but tend to ignore some rather large details that stop their efforts from being fully realized.
Do I want to do something like this? Oh, yes. But if I did I'd probably get myself a filastruder ($300) with automatic winder ($170) and a cheep wood chipper to do my grinding ($130), and skip the molding systems since making molds are way outside the scope of my life. So I guess the only thing stopping me from doing this right now is $600.
Of course there's another problem.