Like-It Book Thumb

UPDATED: 3/16 [Made loop stronger, so that thumb and loop are less likely to break.]

Someone else came up with the idea, but I saw a needed improvement. This is a "LikeIt" or "Thumbs Up" for highlighting good books at libraries. The original was a wedge to put between books on a shelf, but it fell down when books were moved. My design is slipped between the pages of a book and is held secure. The loop-hook is flexible and slips easily between pages. In the file area I included a "thumbs d