Interested in experimenting with your own multi-color filament? [Turbo_SunShine] says to just print your own, and experiment away! Now, if you’re thinking that 3D printing some filament sounds ...
[Michael Rectin] is in on the action, and he’s been exploring how to 3D print ... on to VarioShore TPU, a filament capable of delivering various properties depending on the printing method.
PETFusion 2.0 is both a PET (polyethylene terephthalate) bottle recycler and a custom 3D printing filament maker, with the ability to even apply your own ink/pigments to the filaments you make ...