My future mother-in-law has a nail salon and she has made comments about needing more display cases for her nail polish. Rather than just give her a small one to add to the collection of different racks for storing her nail polish we decided to just make one big display for all of them. This was gifted to her for her birthday.
First we bought three picture ledges from IKEA for $15 each. We mounted them to the wall. Then we cut 1 inch by 1 inch pieces of wood to the length of the picture ledge. I painted them white to match the ledges. I put the painted pieces of wood towards the back of the picture ledge, which created two rows to put nail polish on each picture ledge. The total amount for this project was less than $60.