In the Kyoto Pokemon Center (huge Pokemon store in Japan) are a Mario Pikacu themed card game, a 3DS Cover, and a Maria Pikachu Mario and Luigi plushies, t-shirts, etc. and so much more! So far there has been no announcement for a western release. If you really want to get these items and you live outside of Japan then Amazon Japan is probably your safest bet. The card game looks like so much fun.