I was gonna post the exact same thread as this yesterday! I was bored so got the code from my Wii, 3DS, 3DS XL, Linked my Wii U and every DS, 3DS, Wii and Wii U game I have. Most of the game codes had expired, but still got 7000 points. I can get 1500 Nintendo points, but what can that get me?
Relaxation Set – Princess Peach
Relaxation Set – Luigi
Yellow Pikmin Fruit Keyring
Red Pikmin Fruit Keyring
Nintendo Classic Notebook - Peach
Paper Mario Sticker Star adhesive notepad set – Goomba Battle!
Paper Mario Sticker Star adhesive notepad set – Power-up Pack
Yoshi Cleaning Cloth (Yellow)
Yoshi Cleaning Cloth (Pink)
Game & Watch™: Ball
Wii Remote Wrist Straps in four colours
NES Classic Notebook
Soundtrack: Super Mario Galaxy
Mario Luigi and Bowser foam walls
Nintendo favourites foam walls
Nintendo DS Accessory Case (pink)
Nintendo Points Card (1000)
Nintendo Points Card (500)
Nintendo Points Card (300)
Nintendo Points Card (100)
DS Lite Value Pack (Super Mario)
Soundtrack: Super Mario Galaxy - platinum edition