Make them. Get the wire of the specific gauge you need, find a
dowel, try small knitting needle, or even a i-1.5 mm wire, and wind
the wire around the dowel. Cut in the lengths needed, and there you
When winding, after the coil is as you wish, give one twist
backwards ant the coil will not spring open.
A battery operated automated screw drivrer will do the winding