I have a mid-century bathroom, and like many bathrooms of its era, it has towel bars that are a square cross-section, not round. G2bb made a hook that fits perfectly! But that hook is designed to hold lighter-weight things like loofahs. I actually hang a bath sheet towel from mine, and it felt like that weight would cause the hook to snap.

So, I tweaked the design slightly so it is strong enough to hold the bath towel, while still fitting perfectly on these standard mid-century towel bars. Kind of a quick and dirty remix, but exactly what I needed!