3D Printed Book Cover for Paperback Books

Has anyone printed or seen something similar? I want one of those "privacy" covers like the fabric ones for hard cover books, but this book is a paperback and I haven't found any online so I figured I could print one out of TPU or some more thoughtful PLA.

Has anyone tried or done something similar? I'm hoping to not have to start from 0 on this ideally.

Thank you in advance!