MIniatronics has a great selection of 22 gauge wire in a variety of colors....very handy in extending colored-wire accessory harnesses. Black, gray, green, orange, red, violet, white, yellow....100 ft. per color for $11.95, msrp.
Direct or well-stocked LHS's.....like ours!
They also have other gauges, too.
Hope this helps.
KD