Ideas | Sound FX

http://www.freesound.org/people/mwmarsh/sounds/85928/ - Paper Rustle http://www.freesound.org/people/keweldog/sounds/181774/ - Rustling Paper http://www.freesound.org/people/zerolagtime/sounds/89790/ - Paper Fold http://www.freesound.org/people/j1987/sounds/178844/ - Tearing Paper http://www.freesound.org/people/baryy/sounds/163401/ - Mechanical Click 

http://www.freesound.org/people/Splashdust/sounds/84322/ - Flip Card

I'd say Paper rustle, tearing and flip card are my favourite 3. Although I'm sure all will become useful in one way or another. Flip card has a precise/ clean sound to it. Theres an exact beginning and end that I find a lot of the others lack.