@herdingdata Things like this work *great* in closed, trusting environments. You find them at sci-fi conventions (especially small ones, like Redemption) and bigger, weirder, events like Wasteland Weekend.
I could even see pulling off a lot of stuff in a semi-open environment, like maybe a uni campus at Fresher's week.
But to have stuff just out in the open in public, all it takes is one arsehole and the thing falls apart. So do you now guard all the elements? Needs a lot of people!