Today's fun random discovery:
"Some words in English use (capital) letters to describe the shape of the object to which they refer: A-frame, C-clamp, I-beam, O-ring, T-shirt, T-intersection, T-bone, U-turn, V-neck [...]"
How about Chinese?
https://chinese.stackexchange.com/questions/1805/words-referring-to-the-shape-of-chinese-characters
(Found via https://twitter.com/alicemazzy/status/1761400802545942773 with another nice example.)
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Also, Polish has an amusing variety of beams named after letter shapes (teownik, ceownik, zetownik, dwuteownik which IMO should rather be haownik but sadly isn't).
