He doesn't really look like he wants you to have a nice day, but the sentiment is there.
Via: I Heart Chaos http://www.iheartchaos.com/post/1039378836/fun-japanese-thing-of-the-day-the-japanese
Available at: Amazon http://www.amazon.com/Hamster-Japanese-Erasers-8-Pc/dp/B001EMYOEQ ($6 for 8)
Available at: Suck UK http://www.suck.uk.com/product.php?rangeID=154&rangeNew=1 ($16)
It may seem a little cruel to shut this poor little guy's tail in a book, but he doesn't mind. It's what he's there for.