use two shelves from one of those wire shelving units and zip tie empty thread spools in all four corners and the middle. Awesome idea for wall storage! I have a ton of empty thread spools I've been trying to think what to do with!
Acrylic Paint Storage Using Spice Racks. Create an acrylic paint storage rack out of the spice racks. It not only showcases the beautiful display of colorful acrylic paints but also can keep the paints in order and within easy reach!