Another good source for literary gifts is Litographs (https://www.litographs.com). They have scarves, shirts, etc., featuring the texts of many books (mainly classics, I think). I have their Beowulf and Paradise Lost infinity scarves, and love them. (I'm not affiliated with them, by the way, I just love their shop).
We don't generally do the Valentines Day thing, but you gave me a perfect gift for our next anniversary. You have no idea how happy this makes me. :D Thanks!