This a non-tarnishing copper wire. It is available in some really fishy colors. Your search for copper ends here. We stock them in one size suitable
Uni Soft Wire Small
Flexible Tinned Copper Silicone Wire AWG-20 (1M)
Low-cost prototyping of nitinol wires/frames using polymeric cores
Dr. Slick Bishop Tweezers
Power Cables - Multi-Core Cable, Shielded, Fixed, 500V, RVVP
Ice Dub Steelhead Dubbing Dispenser - 12 Colors
Dr. Slick Bishop Tweezers
Soft Wire, Fly Tying Thread, UNI Products
AFW Copper Rigging Wire - 1lb Spool – Tackle Room