Just take it between your two palms and roll it until the tobacco drops out. Then stuff in the ground up bud with a pencil eraser. They're really good for being secretive, because you can pack the weed sandwiched inbetween the tobacco and no one is the wiser! My buddy's who do it like to pack the weed only in the end and have the first half be the original tobacco. Covers up the smell very nicely.