I believe I am thinking too much as I work.
Helene gave me a pile of 20 year old blocks she and some friends of hers had made for a challenge which never materialized. I can understand why. Here are two of them.
Then I alternated the slices till they were relatively pleasing.
So now, more UFOs to play with when I don't know what else to do or need a break from the real work of creating from scratch:-).