Dustins answer (or, more specifically, your answer to Dustins question) was spot on...
But, if youre still lookin for a presentation...
take a peek @
note: Flush Brush is based on a Kenner effect (Paint by Numbers from Out of Control) which (if Im not mistaken)was inspired by the Dingle trick
Anyhay, maybe the patter/theme will help ya out. Me thinks you could use a similar presentation for the Rollover Aces (card tricks as art... mixing pallette (during fu/fd shuffle)