When you're playing World 7 of Super Mario Bros. 3, you might come across a Tanooki Suit in the Fortress, mostly because you kind of need it to complete the stage. So by the time you reach Stage 7-8 there's a good chance you still have the suit on... if you haven't managed to get hit and lose it.

And in 7-8 there's a pipe that leads to a room with a Hammer Suit in it, which you obviously want because Hammer Suits are awesome.

And if you're feeling a little silly, you might turn into Statue Mario (by holding Down and pressing B) while you wait for the suit to bounce onto you.

And if you do, you'll grab the suit, turn into Hammer Mario, and be Gray!

But!

You also won't be able to enter the pipe at the other end of the room. You'll be stuck in there forever!

Or at least until time runs out, costing you a life and the powerup, so I don't recommend it.