Do a search on ebay for "samuel poly strapping" Seller's name is topline433. I'd provide a link but ebay is recognizing me so I'm not sure copy/pasting the link would work.
We bought a 9900 ft. roll from topline433 a few weeks ago to fill a 300 gal. plastic tote. Described on second and third pages
https://www.gardenpondforum.com/cutting-poly-tubing-all-afternoon-t6197.html
I just kept spooling strapping off and shoving it into the tote. Unless you do something to mash it down the strapping will settle in fairly loosely but I don't think that's a problem. If you take a look at Doc's own website you'll see that the poultry netting doesn't come close to filling the vessel.
The strapping does float. At least it does when new. Don't know if that'll change as stuff grows on it. I tossed a few chunks of PVC pipe on top of the strapping. The PVC pipe has weight in air, but some buoyancy in water, so it seems to be acting as a good auto-anchor if you know what I mean.
We still have at least half the spool left unused.
Oh, yeah, the Samuel strapping is embossed, and it does not have adhesive on it. Just what you're looking for.