I pretty much used this pattern but did stockinette rather than garter stitch, added a bit of ribbing around the edges and slipped the first stitch of each row. If anyone else makes these, make the piece as long as your foot from heel to big toe before doing the K2tog rows, rather than the 7.5-8" suggested by the pattern UNLESS you have feet that small (I sure don’t!!)
I want to embellish these a bit more somehow, not sure how, I’d like to cover up the top seam a bit more if I could, I don’t think I seamed it tight enough and it really shows (to me, anyways!). Also, the top of the back of the heel is a bit loose and I feel like they might fall off as I actually wear them and they stretch out a bit, I’m thinking of sewing in a small strip of narrow elastic just to snug it up a bit.
I used two strands of sock yarn (Bernat Sox in the colours Steel Hot and Pink Hot) and size 5 needles, cast on 36 stitches and it was about 6.5-7" across (I did this because I have rather wide feet).