I am completely out of my realm on creating a mechanical device, but I am willing to give it a college try. I would like to create a Pinocchio nose that grows. I recently watched the Richard Landon, Cable Basics tutorial for some inspiration. I have a basic concept of what I need/want to do, but am having trouble developing it out further. In this video this is what I would like to accomplish at 3:20. I think I understand the mechanics of it, but am unsure of where to start and what materials will help me accomplish my goal.