Some of those ways are pretty good. Shampoo seems too messy, just like peanut butter one except if it is empty and only has a little bit on the sides. I know an easier, less messier way. Ground up coffee beans. Place your small amount of weed in a small zipploc baggie, then rap cellophane(plastic wrap) around the baggie. You can spray cologne on the platic rap if u put cologne on it then rap it in another baggie, if not just put it in a can of Folgers coffee, or any other kind.