I use different online tools from time to time to create content. I have been making calendars for a few years. This year I was back to Redbubble (and I have to mention the brand so you can see the example). I was uploading photographs for a calendar, but the site suggested lots of other things I could do with the same content. You can see some of the examples in the image below.
I think there is a lot of potential for public libraries to load a dozen or so photographs into this. With a dozen photographs you have have a print on demand calendar, and then with a few more minutes spent on the site have many other merchandise options, again print on demand so there is no financial outlay for the library. You can make sure your library logo, website, and other details are on the items, just as you do for things which are printed. These just happen to be print on demand.
I tried some of the bags, and this is how they turned out. They look better in real life than in this photograph - and I am really pleased with them.
This is the original photograph.