I found a scrap of plywood which was just the right size to mill out Curio Shelf Revision 1.
Due to a mistake in the lengths of the dividers, the shelf curves outward in the middle. Not a bad look, but not a look I'd keep in Revision 2.
Another project is a bamboo magnetic board with a french cleat in a V shape for the wall mount. First I did a quick mockup in OpenSCAD to visualize it. The small piece here would be mounted on the board. The large piece would be mounted on the wall. In the first image, the wall would be on the positive x-axis side, and the board on the -x axis side.
Here's the finished cleat. It doesn't look very neat however it is not visible when the board is mounted. Now it is easy to remove or replace the board on the wall. This means you can use it as a screw organizer that you store on the wall.
Here it is with some things attached to it.