Technical Lego would be the thing for this, I think. Or Meccano, if you want something a bit sturdier and more old-skool.

( Mr. Tea 'ulmmm'/'mmneurgh', Mon 9 Oct 2023, 16:56, archived)

Meccano could seriously work.
It's a pity I sold mine. Might have a few small bits left but nothing that could wrap around my leg in one piece. Damn.
( brb Monkhouse Stampede, Mon 9 Oct 2023, 17:51, archived)