The daub idea is a good one, but I think the use of a shiner depends on having a lot more control over the spectator/deck, and the original question struck me as being the kind of problem that's only a problem for a performer who is struggling to manage his audience.
Nick Johnson's post is half right: don't rise to the challenge. But handing a one-way forcing deck to a spectator to 'wash' on the table is fraught with danger - not a good idea in a restaurant situation where you might get a bunch of people picking up on your weakness and who all decide to grab cards for "Mr. Magician" to find. You're going to look pretty bad when they start checking each other's cards...
When I get a spectator interrupting the flow of my act to make demands, my first priority is to change the dynamic - my aim is to make it look as if I am in control and that this person is following orders. Here's an example: if I get someone who demands to shuffle the cards I immediately say, "Sure. Do you want to shuffle now or later in the act? You only get to do it ONCE so make up your mind, quick." This starts to sow the seed that they're not calling the shots. Trust me, though, they always say "now". Meanwhile I cull and palm the aces as I hand them the deck to shuffle.
At this point the look of triumph on their face as they shuffle is typical (it's a control issue, remember?). I turn to the table at large (as they are concentrating on not dropping the cards) flash the palmed aces in a fan and say, "He/she won't get far without these!" This gets a big laugh, as well as letting everybody know that I'm in control and their pal is wasting his/her time.
It also makes the antagonist look up to see what's so funny, at which point I conceal the aces in a palm (maybe even leaning on a man's shoulder, whatever) and say, "Don't look over here - come on, shuffle those damn cards!" This produces more laughter and ensures that the antagonist really has no doubt that they are the butt of the joke, as well as driving home the point that I'm THE MAN. At this point I'll say to the table at large something along the lines of, "I've only done one trick and this guy is busting my balls already." Again this garners a response from the other people who are now in on the joke.
The antagonist by this point will have finished shuffling and I'll take back the deck and openly replace the aces (so they have no doubt that they've wasted their time and never had a chance). I may even add, "Boy, remind me never to play cards with you."
Although the above may appear to be harsh to some, it gets laughs from the audience and throws cold water on the control freak. This is the way I manage the situation in a strolling or banquet venue, a situation where I perform in a more aggressive manner anyway.
In a formal seated show the issue rarely arises as I pick my two assistants myself and it would be unusual for the request to come from the audience itself.
My view is: I'm happy to be a nice guy, but I'm hired to show them some great entertainment. I'm NOT hired to stand around while some jerk tries to be the life of the party by attempting to humiliate the magician. The fact is, I think I know what's good for the audience, this bozo doesn't. I think you'll also find that most of the other table members are secretly tired of their loud mouth friend (colleague or first-time acquaintance) trying to dominate the table. I think that explains why they really enjoy seeing the tables turned.
I'm sure that what Walkinoats is talking about, though, is an informal or impromptu situation, where the dynamic is different - i.e., tricks for friends at a restaurant or bar. In this situation I would be a lot more flexible. My answer to the problem posed is totally impromptu: have them shuffle the cards, then have them take a card out and caution them to not let you see it - tell them to hold it in their hands, up against their chest like a poker hand and just peek at it. Then patter a bit so they stand their with card against their chest. Then tell them to do it again. Have someone else shuffle the cards. Have the first guy show it to someone next to them, then have the guy peek at it one more time. All this BS ensures that the guy puts a huge heat crimp in the card... the rest is obvious. (If it's a woman, tell her some garbage about putting it near her heart, etc)
Of course, this assumes you're working for laymen, not magicians who are more prissy and will take care in handling the cards...