Elegant and lovely, the free project by Meredith Willet is a delightful introduction to using real metal threads. This form of embroidery is centuries old and makes thrifty use of the expensive metals with specialized techniques.
The post on Kreinik’s blog not only gives you great background on these threads, it also has a link to the PDF for the free pattern.
P.S. – If you are interested in the techniques of needleweaving and stumpwock — check out the great dragonfly in this piece!