fortune cookie

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

• noun A cookie made from a thin layer of dough that is folded and baked around a slip of paper bearing a prediction of fortune or a maxim.

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

• noun A type of hollow snack, common in westernized Chinese food, containing a message on a narrow strip of paper, generally with a wise or vaguely prophetic message printed on the paper.
• noun computing A quote-of-the-day feature (especially on *nix systems.)

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

• noun thin folded wafer containing a maxim on a slip of paper