I made a “double decker” cutlery drawer in an existing drawer. It was too deep to be maximized with one level for silverware. So, basically made dividers for the bottom layer as a one piece insert. For the top layer made a tray that lifts out (it’s loose), but has its own bottom. On the top outside edges of the bottom layer, laminated strips of formica. On the underside of the top layer laminated strips of formica (light color), so that when the tray is dropped in it will slide – formica on formica is pretty slippery.