Usually, most shirts have kind of a doubled layer of fabric that you can cut into and place the seeds in there- say around the collar.
Keister'em
...many countries have policies, that all seeds entering their country should gamma-rayed...
when you get your seeds stop by a health food store they have large ranges of dryed nuts and seeds ask for maybe sunflower seeds but make sure they are not flavoured NO SALT.The day of your flight open your healthy snake pour in your beans and dispose of all packaging now just place your half eaten snack in any normal place in your bagage or on your person.Stray hemp seed found in health food product thats gettin kicked the fuck out of court but dont forget GET RID OF THE SEED COMPANY PACKAGING