Torchon Lace Pen Kit
The kit comes complete with working instructions, pricking (you will need to prick the actual pin holes), and a choice of black, white, blue or red pen. Ink colour is blue.
This is easily worked with 22 pairs of bobbins and can be worked in either whole stitch or half stitch, or a mixture of both. I have worked them in white, gold, irridescent and black but why not use a sparkly or varigated thread?
Pen style may vary slightly from those pictured