Valerie the wire I used is coloured copper wire.
0.20mm. I got it in silver and different shades of gold and bronze.
It was made by the Scientific Wire Company.

I got it through a mail order firm called Texere yarns

http://www.texere.co.uk

I have just looked at their site and they have more colours in.
I must order a few more.

I have used them for getting swingy threads to make my tassel skirts.

Shirley
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Shirley Shone

http://www.allcrafts.org.uk