We have a platform (already built and working) that allows a person to customize and print (or order online) small stickers with qr-codes/links that can be placed on any item offline, such as folders, books in library, doors etc. and anyone can scan it and get to a page where the comments on this item can be left. Can be used in universities, libraries, big companies to anonate and collect feedback of anything - such as books etc. etc. All feedback is online viewable etc.