You offered some great suggestions on how to solve my problem or at least salvage the wrong sized triangle units. Thanks so much for that! I have decided to make the correct sized half square triangles with the fabric I have left. It wasn't enough, so more has been ordered and should arrive this week. I will get caught up to Thelma, but I won't lie, this has been a set back.
The 384 wrong sized half square triangles will go into another project. I have in my mind, a cute and complementary black and orange table topper or dresser runner. Perhaps even a lap sized quilt. Won't that be cute, the two coordinating quilts displayed in the same room? It will all work out. When life gives you lemons....etc It will also be a reminder of my humanity.
But you know something? When it came to making all those half square triangles all over again, I just could not face fiddling around with those Star Singles papers. I am a fan of them, but they are labor intensive. Lots of steps before you actually get the units. So I just grabbed my Easy Angle ruler and started cutting out 3 inch strips, ironing them together and cutting. I have about a third of them ready to sew, and will make the rest of them as soon as my new fabric arrives. Have you tried the Easy Angle ruler? It is a fast way to crank out a lot of hsts. And you only have one corner "dog ear" to trim!
If you don't know the Easy Angle, here are some photos from an older post.
First cut your strips the size of your unfinished triangle size. For the project in the photos, I was making 2.5 inch half square triangles. Layer the two strips right sides together and press.
Position the ruler and cut on the diagonal edge.
Flip the ruler around, line the edge up and cut again, this time on the vertical edge. Can you see how fast this method is? Your triangle units are ready to stitch. You just have to be careful not to disturb them too much until you get them sewn.
Thanks again for all your comments and emails. It was a rough weekend and that show of encouragement really helped.