Look the best thing to do is leave the metal pipe behind, double bag the green and put in a bottle of baby powder. Talc Powder is an odor absorber and it shows up orange on x-rays like other organics. I've smuggled 30 grams of hash back from Morocco a year after 9/11 and there were dogs there and everything, also I've smuggled half ounces of some dank smelly ass purple from Cali to Virginia with no problem on more than one occasion.