I designed this bracket to allow me to secure a desk tight up against a wall and prevent it from wobbling. This bracket angles a toggle latch back at approximately 20 degrees, pulling the desk down into a horizontal rail that in screwed into the wall, and tights back against the wall.

The clamp bracket is attached to a 1"x2" board screwed into the wall, and the hook side is attached to the underside of a desk. This allows  the desk to be nice and secure but also very quickly unlatched from the wall and moved if needed.  

These are the toggle clamps I used. The screws that came with the toggle clamps were used to attach the clamp to the 3D printed parts, and I used #6 wood screws to attach the 3D printed parts to the desk and the wall mounted rail.