Round interchangeable shelves - 3 sizes

I use these shelves to display my 3D prints so I see them all day. I had them sitting in a bookshelf in my living room but I don't get to enjoy them much there as I spend most of my time in my office\craft room. While there are many different shelves out there I just couldn't find what I was looking for so I created my own. There are three sizes: Approximately 197mm, 183 mm and 158mm measured across the top tapered portion.The bracket is a separate piece that fits all three shelves so you can move around the shelves without taking the brackets off your wall. There is a command strip bracket and a bracket with holes to attach via screws or something. Your choice. Note for command strip bracket: The shorter side of the bracket is where the no adhesive tab part of the command strip goes (see image of just the bracket to see how it's applied to the wall). I designed it this way so the strip wasn't visible when the shelf is up. Be mindful of the command strips you use and th