It depends upon you but here are a few to consider:
Extreme Burn, Hundy 500, or Heiny 500
Clean Thru Clear Thru
Dollar to Credit Card 2.0 (with DVD) by Twister Magic - Trick
any of the money/bill effects in MONEY Starring Jay Noblezada (DVD)
Loops
Ghost Vision
paper for center tear (T-REX by Ran Pink (Book + DVD + BONUS, The Dr's Billet Tear by Dr. Bill (PDF Instant Download)
Greg Wilson's bill effects in Magic Magazine
Ka-Ching from First Hand by Justin Miller and Paul Harris (DVD + Gimmick)
Braided Bill (With DVD) by Bob Neale - Book