Just completed a cabinet for my nephew built from a picture he sent me. The cabinet is pretty basic construction so I decided to add a unique feature. The top rail was fairly wide so I wanted to utilize the space under the top. On the two door sections of the cabinet I added drop down drawers that ride in carrier boxes. The carrier boxes rides on on slots cut on runners that make ramps. They operate much like a tambour desk. The carrier boxes ride up the ramps and are totally hidden when up. The carrier boxes ride up the ramp slots by using dowel pins and 1/4 inch bolts attached to the fronts and backs near the top of each box corner. Using the ramps decreases depth of the drawers by the length of the ramps. Overall the mechanism works surprisingly well. Push them up and they are hidden. Leave them down and the drawers are able to be accessed when the cabinet doors are open.