Your hands might remind you of your need for nicotine, but that doesn't mean you smoke to keep them occupied. It is was true, you could just doodle, squeeze a stress ball, or use strength-grippers. If your hands really needed to be occupied as part of a compulsion, don't you think that would be a pretty serious and irrational problem in itself? You should have left your need for a dummy when you grew up - if you still need one, then there are surely other issues that need to be addressed once you have quit smoking.