Cute and no rolling diapers! - I love the square cake idea, it's much easier and smarter! I'd use different colors and more decorations but I've never seen the diaper cake in square form before, and I absolutely love it!
A bassinet diaper "cake" - a twist on the traditional diaper cake! Links to a ton of different and really cute versions of diaper cakes. Even a cute single tier diaper cake for those of us who can't afford a Costco size load of baby diapers.