Red, those are fabulous!!! I love them.
Yes Red, I prefer them to be square. But, if your making some for you own quilt, feel free to add them in.
I confess, I haven't even started any blocks yet. I'm right in the middle of finishing up a quilt top that only needs 1 more square made for it. It is an old BOM (Block of the Month) that I found online a couple years ago and started it last year. But, hey, it is almost a finished top..
I have to say, I have thoroughly enjoyed making the blocks. But, the tutorials weren't written the best. (I really like when they tell give you the finished block sizes on the "different parts" that make the whole block. And, that you can download the instructions as a PDF. I had to keep each link to the block I was working on until I completed the blocks. It is definitely a real skill builder. It would be a big stretch for a beginner quilter. No impossible, but, difficult for sure.