I bought a couple of old wool sweaters, washed and dried them on the hottest settings until they were nicely felted.
A nice alternative to a scarf, if I must say so myself.
I sewed five flowers together end to end and added the leaves on each end. To complete the circle I cut a small slit in the middle of one leaf, making certain that it was just big enough to accommodate the button. I used the buttonhole stitch to finish the edges of the slit. At last I tried on the cowl and positioned the button.