What's Mine is Mine never fails to get a great reaction. I think it is because it starts out looking
like a card trick, when the audience sees the face of the cards at the end, they are not like the
usual clubs, heart, spades, etc., so they don't get a 'card trick' in the usual sense.
One
card will have to be sprayed at some point, to make it sticky again. I got a 10.25 ounce can of
Krylon Easy-Tack repositionable adhesive, which is enough for a long time, and enough for making my
own alternative version with different words from the "Mine" and "Yours" used in this effect.