I do like to tat with fine threads and this is a lovely 12 wt Egyptian cotton I found at Katja's Quilt Shoppe in Kamloops, British Columbia. If you are ever passing through Kamloops, this shop is just off the highway and if you are lucky you will get to meet Katja herself. I didn't on my visit to the store but enjoyed the selection of fabrics and knowledgeable staff. I am still new at sewing and they directed me to a bargain bundle of fabrics, just what I was looking for.
Of course I also asked them about threads to tat with and they introduced me to Wonderfil. I chose a turquoise Spagetti. It is double gassed to remove lint and the result is a smooth thread suitable for tatting. Very similar to a 12 wt pearl cotton. To my surprise Wonderfil has their head office in my city, Calgary.
I used the Monica Hahn pattern of Wheel of Nine Rings although I only did seven arms as I plan to add a center bead and create this as a flower. You can find this pattern in her book Christmas Angels and Other Tatting Patterns.