Great idea. Wish I had the room for something like that but I'm now starting to get stuffed as it is. Need more thread racks so having to go with the pegboard method once again. Making my own with leftover pegboard and 1 x 2's. Had my neighbor cut a 3/8 groove down the 1 x 2's, sanded them down and started painting them this past Sunday but its been raining ever since so can't finish them as I'm working out of my rear garage. My thread company (Connecting Threads) has changed the shape of their spools so they no longer fit my rolling drawer.
Tell you hubby "nice job" and he might want to draw up his plans to sell as he did a professional job from what I can see.