Ooohhh, fun. These Hummingbird Magnetic Bookends appear to be floating and sucking nectar from a flower, but there's a magnet inside (aided by a hidden steel sheet) that's actually keeping your books upright. Handmade in Mexico from 100% sandcast recycled aluminum, each piece is unique and charming to boot...

Available from Objects of Design for 32 GBP, or about $53. Not exactly cheap, but oh well.