Brightly colored pieces of crap echoes my sentiments exactly. Eventually they&#x27;ll end up in the trash; only take up space in a landfill, or end up in an ocean gyre.  I don&#x27;t doubt the utility of some of the &quot;exotic filaments&quot;, but these are even less recyclable (or biodegradable compared to PLA).  The only useful example he gives is a quadcopter.  The majority will just print stainless steel Yoda heads, and fractal vases, that sea life will choke on.