When I searched how to do my tree I saw one that was a folded paper half circle. So I thought what if I did it out of fabric? Then I got thinking about the edges. I had decorated some tshirts with zz edges a few years ago... Every tree looks different. I sewed the edges on my Emdeko made by Toyota. I tested using pattern stitches thinking I could get a different effect but plain zz worked the best. The circles do not have to be perfectly round but they do have to be a knit. Every one of them came out different - maybe my quality control isn't so hot. Dot's looked like it was having a frolic with the snow person. This one just wouldn't dance. She looked happier just walking around.