I have seen quite a few puzzle rings, and worn a couple. They
stand up pretty well, but it’s very frustrating if you forget how
to put them back together. (A guy at work assumed I was an expert
and handed me one last year - I kept it for four days, woke up in
the middle of the night remembering how to do the puzzle, and
gave it back reassembled. I suggested soldering it.
My knots look a little bit like puzzle rings, and they hold up
very well, even though the wire is usually of a smaller gage than
what you’ll find in most puzzles. Go for it.