Trading cards featuring Nintendogs and Zelda characters, for those of you who need to own it all.
You may not have known it, but trading cards do still exist outside of major athletics. A company named Enterplay has recently been releasing trading cards featuring Nintendo characters. Card sets for Nintendogs are already available, and the company is working on sets for The Legend of Zelda: Twilight Princess and "Mario & Friends". The Nintendogs set contains 20 cards, while the Zelda set will have 86 cards when it is release in July. Mario's set is due in August. The cards feature characters and items from the games, and also include game tips.
The card packs also include bonus items. The Nintendogs set includes a sweepstakes ticket which could net you a DS Lite or Nintendogs shirt. Both sets included bonus tattoos, and the Zelda set additionally features a 9-card foil set.
According to their website, the trading cards are available in major retail stores worldwide. They do not seem to offer cards based on anything other than Nintendo franchises.
Thanks to UncleBob for the tip!