Precious Plastic publishes free designs for shredders, extruders and injection machines so communities can recycle plastic locally, and runs a map of more than 1,100 workspaces worldwide. Its parent, One Army, funds the work through memberships.
Honest caveat: the site describes Precious Plastic Foundation as a Dutch non-profit but does not print a registration or Dutch public benefit organisation (ANBI) number, so treat membership as support, not a deductible gift. Local workspaces are independent; most, such as Precious Plastic Melbourne, do not accept plastic from the public.
How to start: community.preciousplastic.com/support (tiers from EUR 7 a month); find a workspace at community.preciousplastic.com/map