I made the banner using The Print Shop. It is a handy little program that I have on my computer at school. I easily use it once a week it to make banners, bulletin boards, signs and calendars for my students. Print Shop prints each pace of the banner on regular 8 1/2 by 11 paper, then you just trim one edge of each sheet of the paper away, line up the letters and tape the sheets together. Presto! Instant custom made banner.
Each cat face took one sheet of 12 x 12 for the main piece of the face and then scraps from other sheets for the details. (I needed three sheets of green to create two green cat faces. One sheet each of pink, black, brown blue and white was enough for all the details.) I didn't measure or pre-draw the shapes - I just tore the paper and went with what I got. I like the green cat face above the best - she has a more angular face and a larger chin. Somehow she just looks more cattish to me.