No, not those Magic cards. I'm still kicking myself for selling off my "Magic: The Gathering" cards when I moved to Massachusetts. I weep when I see what a Black Lotus and Mox Pearl is worth today.
Mike Jenkins sent over a link to an interesting set of magical charm cards from the Will's Cigarette Company, posted by the New York Public Library. The series dates back to the 1920s and were inserted inside each pack of smokes as a premium. Each one covers an item from around the world and includes explanatory text on the flip side. The artwork is phenomenal, and the entire set has a wonderfully creepy vibe.
Update: Broken link fixed.