Credit goes to https://apps.mathlearningcenter.org/pattern-shapes/ for helping me with the shapes of these.
My friend built a tower with the shape of the one that gets wonky below. I didn’t see him build it and wasn’t even sure how to do it the way he did so I got on this website and played around. After some testing here are some of the results.
I may share more designs in the future. We’ll see. Sorry for the spelling error of “symmetrical” in the .png. Didn’t realize until now.
Symmetrical and extendable classic castle design: