I thought I would try to creat something in fabric as this is the way I usually think and here is the result.
The numbers are held by velcro so they are easy to change every day. the pocket suspended at the bottom holds the numbers that are not in use.
I have just realised that I cut off the top of the picture so you can't see the ribbon loops I put there so that it can be hung using drawing pins (pushpins) or a wooden rod could be put through them and then a red ribbon or cord used to hang it.
This has quite restored my joy in sewing.
If anyone wants to try this I can send you the measurements and amounts for fabric.