This is a guard for an augmentative communication device made by combining a GoNow Rugged case and an iPad 2 with the Proloquo2Go app 77 cells and message window size set to very small.
A guard helps eliminate accidental activation by touch of other cells.
The left and right guards can be connected using epoxy or super glue. I have also used a soldering gun to melt the two pieces on the back of the guard.
The guard is held in place by its outer edge and is placed first inside the GoNow Rugged case followed by the iPad.
The yellow part in the picture is a solid built in support for printing. I found the solid easier to remove.