From Amazon
Polymaker Silk PLA Filament 1.75mm Metallic PLA Gold Filament, 1kg PLA 1.75 Cardboard Spool - PolyLite PLA Silk Gold Shiny Filament 1.75mm, Print with Most Printers Using 3D Filaments
Conrad Electronic
Polymaker PA03001 Silk Filament PLA satin satin 1.75 mm 1000 g Gold PolyLite™ 1 pc(s)