I knit these as a lark for a friend’s Christmas tree. Enough people asked for the pattern that I wrote it up (though you could likely come up with something just like it on your own if you wanted to).
These are quick to make, use only a few yards of yarn, and make great Christmas ornaments or present toppers. The pattern includes instructions to make the 7 hats shown here.
Gauge and yarn choice are not terribly important. These all use a DK or light worsted as the main color (the solid one) and a fingering as the contrast color (the variegated one). They are made at a gauge of about 4 stitches per inch (to give a finished size of 3 inches across and 2.5 inches high). But you should feel free to use whatever yarns you have on hand and to work at whatever gauge works best for you.