I figured a tree
Any of you ever put up a convex mirror type thing for a hidden driveway? I'm not thrilled with what I see as the choices. It seems either I put it up high where it's a pain to clean or I put it down low where some subhuman can break it or possibly steal it. Seems I have to drill it in as opposed to just vellcroing What are you attaching it to?
Maybe this isn't worth it
Whether you put it high or low, if someone is intent on breaking it they will. If it's out of reach, they'll just throw stuff at it. So just put it where you want it. You also can't stop a determined thief, but if stealing it requires the use of tools as opposed to picking it up and walking away, the odds are in your favor. I occasionally hear about idiot kids vandalizing mailbboxes for fun, but can't recall hearing about one being stolen.
Drilling is not a big deal. Most of these things mount with a Z bracket, which needs a couple of screws. Drill two small pilot holes, or if you don"t have a drill make holes by pounding a nail part way in and pulling it out. Use the biggest diameter hex-head lag bolts that will fit through the holes in the bracket. Use a ratcheting socket wrench and you are done in a few minutes.
If you don't want to drill into the tree you could try using pipe hanger strap from home depot.http://www.homedepot.com/p/Oatey-3-4-in-x-10-ft-Galvanized-Steel-Hanger-Strap-339232/100167964
Wrap it around the tree with the end of the mounting bracket between it and the tree. When it is as tight as possible use a bolt and nut to hold it together. Take up any slack with shims. Use scrap wood, or something like this.http://www.homedepot.com/p/8-in-Composite-Shim-Bundle-of-12-SHM1-12-TW/202807695
If you want to avoid drilling and minimize the use of tools, try a lashing straphttps://www.amazon.com/Keeper-85243-Lashing-Strap-Pack/dp/B004PL4H0O
After it is up, drive a couple of nails into the tree through the webbing to discourage theft.
When you but your mirror, look for something made of unbreakable material like acrylic rather than glass. And before you mount it have a helper hold it in place to make sure you get the view you want from your driver's seat.