OOh, yeah!! I like the oil & water idea. That used to be one of my favorites. Although with someone else shuffling, there's no guarantee of a "perfect" reshuffle on your part. (Have you ever had someone turn half the deck when they shuffle for example?!! Ouch! Talk about needing to leave outs!) Then again, for THIS particular effect you have in mind, that habit might prove handy... Check it out- 1. Hand them an "inversely faro shuffled" deck 2. Let them do their 180 degree-packet-turn shuffle. 3. Strip (the deck...not your clothes) 4. Faro shuffle, to complete >>>voila! New Deck! 5. Give it back to them and let them have a good cry (if you're sure they won't figure on the stripper, that is) Did you catch the 411 on the Stackview program you can download? That might be worth a look!!! Cheers.