[QUOTE=RugosaB;7160210]I made my own template. It's clear enough that I just drew the lines on it with a Sharpie QUOTE]
We made those about 7 or 8 years ago. The teacher gave us a plastic template that she had created. Most of them were for 7 inch squares, but she made a special one for me for 6 inch squares because I had hundreds of six inch squares cut, so why cut more of something else?
We placed the template on the squares with the lines matching the seam lines, drew a line around that, and cut them out with scissors. There was no waste. The little squares left from the centers went into the borders.
If you could find the correct size you want, and the correct place to draw the lines, you could make your own.