I saw squares similar to these on Pinterest and decided I could figure out how to make them myself. Well, it wasn't all that easy...I probably wasted at least a yard of fabric. So, now that I have made 52 of these suckers (for a couple of baby quilts), I feel confident in expounding directions to anyone interested! First, these can be made into different sized squares. Mine are 7 1/2" squared. I cut my fabric strips 1 1/2" wide by about 28" long. This will make four 6 1/2 by 6 1/2" squares that will eventually become two finished 7 1/2" squares. My best advice is make sure you use spray starch to iron and be very careful when pressing not to stretch fabric. I pushed seams open with my finger rather than with point of iron and it seems to help.
Sew strips together using 1/4" seem. Press, using starch again. Then lay out finished strip and cut into 6 1/2" lengths. Take two squares and lay them right sides together but with one of the blocks vertical and the other horizontal. Then stitch around all four sides. I only sew one side at a time because inevitably the squares don't match up perfectly so I end up having to fudge my seams a little. After two squares are sewn together lay them out again and carefully make a diagonal cut so that you have two triangles. Then cut the triangles in half again.
This is a picture of how you lay them together to sew around outside edges.