I built these planters about four years ago. This one, in particular, keeps getting bashed, and this week someone really whacked it.
Not exactly invisible, with a silver-birch tree rising to about 8' above the gravel. I'd like to whack the person who did this about the head with a length of 4X2.
I've put it back together with several big steel bolts through the corners, tougher than the original coach-screws. But what I'd really like to do is to stick big steel tyre-ripper spikes in the ends. The company chairman says no. Can I put a microswitch in, that sets off a loud screaming?