Amazon.com and GoldenDepot.com both offer spinning nail polish display racks. Their racks are either made of black metal or clear acrylic and come in various shapes and sizes.
MyGift is a company that makes nail polish racks and sells them through Amazon.com. Its racks are made of black metal and typically feature three round tiers. Some have three uniform tiers, while others have a three-tier design that resembles a wedding cake, with the layers getting smaller as they ascend.
GoldenDepot.com offers several spinning, clear acrylic nail polish racks that are either oval- or square-shaped. Most of the racks have five levels. The number of nail polish bottles that the racks can hold depends on the sizes of the bottles.