Don't get excited. That's not a picture of official Super Mario Bros. sheet music It's actually a collection of basic piano duets presented by Nintendo's lovable plumber brothers.

Putting these iconic characters in a song book is an interesting way to motivate children. Speaking as someone who endured hours of music practice as a kid, having something fun to look at might have broken up the tedium a little bit. Of course, this collection is aimed at beginning pianists who have yet to master "Hot Cross Buns" and "Pop! Goes the Weasel," so there's not much here for a more advanced player to enjoy other than some goofy images.

If you're interested in following this auction, you can find it here. Be sure to check out the other pictures after the jump.