What, you can't guide the console by whistling? Not gimmicky enough.
Some ideas Nintendo can implement:
A tongue sensor on the console with tastes varrying from ramen to tropical fruits depending on the color revolution you own. The sensor can work with games like "pokemon lick".
Also you can dress you dress your revolution up with mr potatohead like accessories, used in connection with games like "Marios Idol party."
Patent pending.