Three inches square! That's what I decided would be the perfect size for the pat of butter than I am inflicting on Macaroon. To make it I took a leftover piece of yellow Kona cotton and then I ironed on a larger than 3" square of stiffener. I then snipped 4 vents and cut up some leftover pieces of batting and put it in place, then I folded the excess fabric up to create the butter pat, placing the ends of yellow elastic given to me by Lynne--- THANK YOU, LYNNE!!!--- so that I could stitch them in place. The result: a hat that looks like a pat of butter!!