To keep books in order, I use completely random objects as bookends. Currently, I’m using an antique tea pot and an Abraham Lincoln novelty mug. With the abundance of fun bookends out there, I’m tempted to splurge on the real thing. Here are a few I like that serve as bookends and as shelf decoration.
Rhino Bookends – $34
Gold Pig Bookends – $29.95
Toy Soldier Bookends – $29
Greyhound Bookends – $66
Dachshund Bookends – $150
Balloon Animal Bookend – $42
Branch Bookends – $64
Star Wars Bookends – $59.99
Lynnandtonic Blog 
Funny, cuz bookends are the only thing on my Christmas list so far. Here are the sets I like best.
http://www.justbookends.com/bookends/animal-bookends/beyberkmonkeybookends.cfm
http://www.justbookends.com/bookends/other-bookends/pairofswingtimebookends.cfm
http://www.justbookends.com/childrens-bookends/figure-bookends/tugofwarbookends.cfm
http://www.justbookends.com/bookends/sculpture-bookends/helpinghandbookend.cfm
http://www.justbookends.com/childrens-bookends/figure-bookends/marbleplayingbookends.cfm
I thought this one was clever too: http://www.justbookends.com/bookends/animal-bookends/ducktapebookends.cfm
Ha! I love the duck ones.