Wow! Looks like several people are thinking about doing this.
To Grammo013 and KO24, I got it from QuiltersCasche (sp) Also known as Quilt Blocks Galore. She calls it Planned Patch Hood. I changed it slightly. It calls for one more square of each color to "push" into the next block. I had one block laid out in front of me and thought it looked good that way. It is very easy.
To Peabee and Sewaholic, it is 4 little squares of each color. I like so much that you can make them whatever size that pleases you.