Manufacturers dye all sorts of 3D printer filaments on their factory lines; why can’t we? [Richard] takes this idea one step further by creating his own custom multicolored reels of nylon.

Fishy Filaments takes old nets and shreds them into tiny beads of plastic that can be used in injection moulding or made into a filament for 3D printers ... "The nylon monofilament gill nets ...