Been looking at various options to redo one megatree this year and the US guys have long spoken of pallet strapping. In doing some research i found PET pallet strapping, nice some edges and tough as nails and really doesn't stretch when pulled tight. First got a sample of 16mm wide but by the time you put a 12mm hole in it there wasn't much left so bit the bullet and ordered a roll (900M) of the 19mm wide stuff. It has something like a 800Kg breaking strain so even with a bunch of 12mm holes in it it still doesn't stretch. Now one thing with the PET strapping is it splits lengthwise really easy so normal drills just cause it to split, so you have to use diamond coated hole saws which cut though it cleanly (and quickly). You get holes like this... And the pixels go in like this.... these pixels are really tight so I'm looking at some sort of press jig to make it easier on the fingers. string of 50 rolled up looks like.. Stretched out in the hallway there is no sign of twisting. I did make a drilled jig up, 3D printed of course, but don't have a photo handy. What i haven't yet worked out is the top and bottom fixing methods for the strapping.