I made two sets of six 12" red and white blocks for another swap over the last few days. The one on the left is Jacob's Ladder and, on the right, Lady of the Lake. Each of the latter takes 20 half-square triangle squares so I don't think I'll be making any more real soon.
I discovered a way to make a lot of pretty accurate half-square triangle squares, though. Cut one square from each of your two fabrics, put them face to face, sew all around all four sides, and make two diagonal cuts. If you start with 6" squares, you end up with 4" HST squares. With 5" squares, the result is 3.25" HST squares, and with 4" squares, 2.25". These do have bias edges, so they need to be handled with care.
I fiddled with three more possible squares for the swap, but decided only one would work. Watch for more pictures... eventually! With all this trial and error, I am running out of white-on-white fabric, and if I can go to the quilt shop tomorrow, I will get more. If not, I am out of luck until Jan. 3 since the shop is closing for the holidays.
I am pretty excited about making another red and white quilt. My first quilt was red and white, started in 1974 and finished in 1986! Made of polyester blend cotton, it has been mended several times. I also signed up for a new year-long two-color mystery quilt developed by Brenda Papdakis of Dear Jane and Gay of Sentimental Stitches, called Just Takes 2. Should be interesting and I'm hoping I can use the blocks in this quilt, too.