Or, pony in a jar, rather. Neither makes any sense, but it's a heck of a lot cuter than, say, a message in a bottle.
Not nearly as functional, but, who needs function when you've got a pony!?
Right. Moving on. I can't come up with any sane reasoning behind this wallpaper, but I thought it was cute, so I decided I'd spread the madnes... erm, joy.