Carry it through screening on your body. Cargo pants will allow you to carry a quite large bankroll.
You might be interested in a recent article by Bob Nersesian in All In magazine. He describes a case where cash was confiscated. It was only around $30K or $40K if I recall correctly. After lots of legal wrangling, the cash was finally returned about a year later, and all 'charges' dropped.
Only around $30,000-$40,000 you say it if it is like $40 or something. That is a ton of money to be carrying around with you. What if you get held up and somebody steals your cash? Why in the world would you not just put the money in a checking account that has branches all over the place such as a bank of america, or a wells fargo, or a bank of the west and then pick up your money when you arrive. Anything over $10,000 can cause you trouble.