Garnier/$100
This ingenious piece of hardware threads into a tree and it serves as a mounting point in the construction of tree structures. In short, these fasteners are your first stop in building one sweet treehouse. They’re super expensive, but they were designed to hold a bed-and-breakfast in the trees—no joke.
Greenlee/Not Available Yet
Ever wish you could break steel in half like Superman? An ETS12 battery-powered bolt cutter from Greenlee will do just that, as long as you’re only looking to cut objects like grade 8 bolts and rebar. The ETS12’s head also spins 360 degrees and will cut 100 times before running out of juice. Safety glasses are recommended—blue spandex is optional.