I love the ceiling idea. A modern take on vintage ceiling tiles. We don't have any drop ceilings, but a similar look could be attained with a stencil if I had the patience to do it. Perhaps in a bathroom where there is less ceiling.
A great and affordable way to update and ugly discolored drop tile ceiling with only a few art supplies. Paint (both latex for tiles and metallic for the metal spacers), wallpaper and stencils. Shown in pic half finished.
Make your Ceiling Pretty! Embossed Wallpaper Ceiling- This is a really neat ceiling idea. I've seen it a couple times and never knew how easy it would be to create. This would be great after getting rid of that popcorn ceiling.