I've never done it, but stick a water bottle in your pocket. Long as you don't have a short shirt, they never check. I'm addicted to pineapple juice, always thought about putting it in a water bottle and doing that. You can put anything in your pockets and bring it in, they never check.
I've actually never have had a problem with water bottles they inspect. I have been sure to bring clear or semi clear cycling water bottles either empty or filled with ice water. I just tell them it has water inside and they let me through. Worst that could happen is I just dump the contents in the trash and being an empty bottle in.
Never tried bringing opaque bottles in.
