Library journal have a great list of places to find library themed masks. Not cheap, but maybe a bulk order could cut down on shipping costs.
https://www.libraryjournal.com/?detailStory=put-your-nose-in-a-book-masks-library-style-covid-19
Library journal have a great list of places to find library themed masks. Not cheap, but maybe a bulk order could cut down on shipping costs.
https://www.libraryjournal.com/?detailStory=put-your-nose-in-a-book-masks-library-style-covid-19