I think this is awesome that you are doing this and I am going to try myself. I also wanted to point out that using flannel or double knit for the backing helps keep them from sliding off so easily. Double knit isn't what we want on a work of art but it helps with the functionality and wears like iron.
Since everyone's stuff needs to be labeled it would be nice if you put a label with a blank spot for their name.
You are an angel for thinking of them
Mary