Well, don't ever knock Japan for not considering absolutely everything. The home to some of the world's biggest, cleanest and fastest trains is also home to one of the most minuscule, but unlike those toys you'll unwrap during the holiday season, this bad boy actually serves a bona fide purpose. Designed and showcased by Hidepon Works, the contraption you see above is actually a gas turbine-powered model train, and while it's small enough to bring a smile to your infant's face, it's large / powerful enough to actually get a conductor from one location to the next. Only problem? Paying for the railway infrastructure.