From the humblest soda-straw spit-wad to the mightiest Nazi-crushing golem, there’s an undeniable, universal human thrill to breathing a little life into otherwise inanimate objects. The projects in this section get things moving by a variety of novel means—harnessing steam, compressed air, tiny vibrators, FedEx envelopes, camera-flash-ignited breath spray, and esoteric physics. Dream of the future when all of these can be combined into one fantastic, terrifying project to end all projects.