I decided I would do a color wheel with colors of the rainbow. Of course, I chose to do it with fabric. I wanted my little boys to participate a bit so I didn’t do anything complicated. We went it my small stash of craft felt and chose our different colors together. Afterwards, I use my sewing machine to embroidery the days name (in French) with my two boys sittings on each of my laps. It was fun for them. I did the remaining in the evening after they went to bed. I had some binding ready that was left over from another project and that fitted well the color wheel.
I did two of them, one for each, that now hang on their bedroom walls. Each day is like a little pocket. And they use a clothespin to identify the current day. They change it when they go to bed or when they get dress in the morning. It was fun little projects to make and they love it!