Fill a prescription bottle with tic-tacs and pop them in public.
Original pill bottle: [link]
WARNING: There are laws in America about prescription drugs. They have to be yours for you to have them and they must contain the drug that is prescribed on them.
And just for a rule of thumb, just don't mess with cops and be careful who you do this in front of.
However, I know there are novelty items out there that you could imitate with this. For example: [link]