I own several Denecke SB-T units, and my solution was some industrial strength velcro onto the back of the monitor. I always keep some in my Pelican for these kinds of things. The SB-T is about the same size as the LCD screen so it makes sense.
My own preference is to hand over the slate and box and let camera suss it out. Typically they'll have their own preferences (and every time I try to be "helpful", I usually end up starting at least one small fire), but this ia a good idea to keep in your pocket should an AC/DP ask for a suggestion.