The cool thing about metallic filaments is that you can patina them.
If you are based in Australia – or more precisely Melbourne – this is an absolute awesome source:
The company is a filament wholesaler that has been around for nearly 15 years and exports all over the world for other brands. The owner is a great supporter of the local maker community and is happy to sell affordable filament of outstanding quality in small quantities. He also allows you to pick up from their factory at Bayswater, Victoria at no cost. I have tested several of their filaments (including the bronze with great success) and it is outstanding with extremely tight tolerances on the filament diameter (+/- .05 mm).
I have been using BlackMagic3D filaments and Excelvan filaments for the past month and have found them to be very good quality and have great colors. I also have the BlackMagic 3D Robotic Steel Metallic Silvery Steel filament to try next.
Here is a link to the Excelvan Dual color spool - http://www.amazon.com/Excelvan-Printer-Printing-Filament-MarkerBot/dp/B019Z1A5CW/ref=sr_1_1?s=industrial&ie=UTF8&qid=1463388137&sr=1-1&keywords=Excelvan+pla
Here is a link to the BlackMagic3D Glow in the dark - http://www.amazon.com/Glow-Cosmic-3D-Printing-Filament/dp/B015ZZCGMY/ref=sr_1_sc_4?ie=UTF8&qid=1462864045&sr=8-4-spell&keywords=Blackmagic3d
That first link is to ABS filament.
Thanks. Above link fixed.
They’re in the UK, which makes shipping more annoying for me, but Faberdashery has an interesting selection of colors, as well as having four sampler packs – rainbow, translucent rainbow, metals, and grayscale – with 10m lengths of each color in the pack.
I’ve tried a dozen or more brands of filament, and Atomic filament has the best diameter consistency out of the bunch. It’s made in the USA, and I actually know the guy now. It used to be made in SoCal, and the guy just moved up here to rural Indiana to share part of the enormous building that SeeMeCNC bought. Free shipping to the US. Good people. Great filament.