Want to see Mario in a different outfit than his trademark blue overalls and red shirt? How about putting on some shades and slipping into a shirt that would make even Tom Selleck jealous? The shades are easy to get. Look for a man with black sunglasses in the hub world (he's at the beach, close to the fruit stands) or in most of the other levels and talk to him. When you've gotten 30 Shines, he'll give you a pair of sunglasses to wear, which will darken your screen appropriately. Note, the sunglasses will disappear the moment you step into another level or restart the game.

The same guy will also give you a Hawaiian shirt -- but you've got to do some work first: finish the game. If you've saved your game after you beat the last big boss, you'll be able to get your shirt anytime you talk to this guy.