The last couple of landing nets, I've gotten at garage sales for $2-3.
I need a new one, haven't seen a used one anywhere, and those things are insanely expensive to just run out and buy a new one.
I've seen the right cord and tools from lure making companies for about $10 bucks, enough to more than make just one.
From watching a few videos, it doesn't look that hard--- just tedious.

Has anybody else made one? Once ya get your muscle memory going, is it easy, or do ya end up throwing the whole mess in the trash?

A couple of years ago I had to move a very large tropical fish (Pacu)- about 2' long and +10 pounds from one aquarium to another. Obviously, I wanted to something that wouldn't damage him as much as a traditional landing net so I made one from a pillow case and PVC. For the single use case it worked flawlessly- barely lost a scale during the move.

Well, I got my first one done. And yep, it looks like a 10 year old made it.
But it does a good job skimming the layer of leaves that blow in every week or so.
I think I've got the technique down and have started on one for my bigger hoop.
It isn't hard, but tying 4.7 million knots is getting a little tedious.