Stamps!
[stamps]
One of the subtly best aspects of the "Super Mario 3D" series is the way that they've been going back to the early/SMB3-era art style. They did it with the storyline pictures in 3D Land as well and I still love the overall feel.
I can only dream of them eventually making a new 2-D Mario game using hand-drawn animations a la Wario Land Shake It! in this style. Oh how glorious it would be...but when it comes to 2-D Marios we're probably stuck with the NSMB style for a few games longer, at least. Sigh.