trading card

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A card with a picture or design printed on it, often one of a set collected and traded by children.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A collectable card included with tobacco, food or confectionery products and featuring sports, cars, natural history, film characters or other information of interest to purchasers.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a card with a picture on it; collected and traded by children