My Nintendo (Europe & Japan) - new rewards for September 22, 2017

Europe
[3DS] Pokémon Gold Version / Pokémon Silver Version: Cast (Nintendo 3DS Theme): 100 (available until January 1)
[PC/Mobile] Pokkén Tournament DX (Wallpaper): 50 (available until March 1)

Japan
[My Nintendo Store] 30% off Nintendo Store-exclusive Smartphone Case 『Sheikah Slate』: 50 (available until October 2)
[My Nintendo Store] 30% off Nintendo Store-exclusive Smartphone Case 『Squid』: 50 (available until October 2)
[My Nintendo Store] 30% off Nintendo Store-exclusive Smartphone Case 『Splatoon2』: 50 (available until October 2)
[3DS] RecoChoku: Download Code (1 song) (Nintendo eShop): 250 (available until October 20, but quantities limited)
[3DS] Pokémon Gold Version / Pokémon Silver Version: Cast (Nintendo 3DS Theme): 100 (available until January 8)

from GoNintendo