Those bars could easily be replaced with PVC piping that you just need to cut to the right length and then keep sturdy with a base. Description from architecturendesign.net. I searched for this on bing.com/images
Perfect. She used two shelves from one of those wire shelving units and zip tied empty thread spools in all four corners and the middle. Have to do this. I have some grid squares in the closet and about a billion Plaid acrylic paint bottles. Put a dot of paint on the lid of each and finding the right color is a snap. Also, maybe I will stop buying colors I already have.