Migrated to: https://www.printables.com/model/547963-gen-3-toyota-tacoma-gas-door-cap-holder-with-cap-t I printed philthyfool's design, and it's nice, but the cap kept dropping out of it. I wanted a screw thread for positive retention, so I re-built it in Fusion 360, and added a screw thread (45mm outside diameter, 41mm inside diameter, 7mm pitch, if you're interested)