I think I've won hehehe. I got a few lengths of chains and some metal clips from the hardware shop. When some hard faced sod stole a flippin planted tub from the front

. It seems to have worked, nothing stolen since in over a week (touch wood) I've attached everything apart from the small plants to a chain that runs behind the stand the display is on and just put a sign up saying to ask for assistance with anything fastened.
It's not very noticable until you pick something up, but I suppose that's the way of the world now. If it's not nailed down someone will try nicking it