Whoever designed these things, has never used them.
The center unit is the only one that can't be twisted after application because it's stuck to a trunk, that's why it has a handle (!?).
And the handle gets in the way of the butterfly nuts from the arms that should be turned.
Copper wire annealer that prevents the black oxidation.
A guy wire tightener.
A vibrating chop stick. Sounds funny, but when pouring concrete we love packing it down with a vibrating tool.
Some tool to slowly twist a trunk over the vertical plane. I want one branch to move to the left instead of the right, so it takes me 3 years of wiring and twisting the trunk to do that, while the tree is flexible enough to do it in 1 year.