A deck of cards, 52 of 'em in the standard way of things, with two effects:

The first is targetable on any PC, and shows them a private message telling them what card they got. That card can then not be given to another person until the second effect is used. They essentially are just dealt a random card.

The second is a self-only effect that returns all 52 cards to the deck, allowing any of the 52 cards to be given out through the first effect.

Maybe allow a pick-pocket or dexterity check to manipulate the suit, number, or specific card dealt.

I like this idea. Cards being a very easy way of keeping someone occupied and for gambling, this would be a pretty useful tool.

I wonder if we could make the Luck of Heroes feat or Lucky (racial feat for halflings) affect the chances of a better draw?

I support anything that would allow for the use of Sleight of Hand (pick pocket).

I can't wait to use my -52 pick pocket skill modifier!

I think with the way they make pick pockets not work with a huge negative modifier, they might not be able to use the skill for anything static like this....but I may be wrong, it happens a lot, and I'm pretty out of the loop.