This is my Nail Polish Rack. I did it myself with 3 Black Foam Boards, a (sharp) box cutter, hot glue gun, popsicle sticks, gold trim and black acrylic paint. Below is a picture of it without the polishes inside. It holds more than 100 nail polishes. I gave each shelf a lot of room so the taller polishes will also fit. The shelves are deep so you can line up two rows of polish, but that would probably make it too heavy, especially if it is hung on a wall. Mine sits on my makeup desk -for now- bc I haven't really found it a permanent spot. Its a super easy DIY ( Do It Yourself ) project.
The popsicle sticks are glued on to each row to work as a ledge to prevent the nail polishes form slipping off. It also made gluing the trimming on super easy.
Below is a pic of it filled up with my polishes. Not including the Nail Art brush polish, there are approx 95 bottles. I didn't really put them in any specific order, just grouped them by brand. I did put my newest and most used polished on top. The Nail Art Brush Polish just kind of all fell together there at the second to last shelf.