There's a legal way, in Europe. With every Nintendo game you buy, also from some other developers, you get a card in your game case with a certain amount of 'stars' on them. Usually about 300. For consoles/handhelds you get about 500 or more. These stars are activated on a Nintendo-Europe account by means of entering a long code listed on the card, which consists of letters and digits. On the Nintendo-Europe website these stars can then be traded in for limited edition goodies, like a Link statue or a Mario Kart RC car or say
Wii Points. I already purchased more than 1000
Wii Points this way. =D