Then I made a quick drawing (below) of my diagonal plan, counted how many squares of each color would be needed. I most cases I had enough of each fabric, but added some that were close in value. After all, this IS patchwork!! If I had needed an uneven number of squares across and down, wouldn't it look great as Trip Around the World???
Here is it, laid out on my design floor. This sews together FAST, if I stack each row, put a pin pointing either right or left on the top square, take them all to the sewing machine and just get sewing, pressing the seams either right or left for speed. Whew! Dreaded basting is next (my least favorite quilting job).
You might consider using some of YOUR stash for the backs. Getting the fabric cut into a usable size is the first hurdle. I tried using chunks for the back, but somehow, it just was NOT attractive, or balanced and I cut them into squares instead. This backing idea came from Bonnie Hunter of Quiltville.com, and I've made 4-5 like this. Thanks Bonnie!