[bluegypsophilia]

A soft material covering for the rim of hard cover books much like a steering wheel cover. One that stretches and comes in different themes, and colours etc. Just a little comfort measure. It would hold the pages back as you are reading.

[Michael D. Grissom]

Would you call it a BookWormer or BookWarmer? Cute idea and I see several references to them as gifts ("...a book warmer hand-knitted by old Mrs. Jones") in google searches but none for sale. Sounds like a great Christmas stocking stuffer to me.