Adam Savage got a 12 inch sawblade through the TSA nudie scanners in his jacket pocket. I think you could get away with a packet of Mayo in your carry-on, or in your pocket.
https://www.youtube.com/watch?v=q3yaqq9Jjb4
Last edited by SeanBlader; 02-07-13 at 11:52 AM.
Reason: Found the video