7. The Great Leonopteryx - Avatar
20th Century FoxDelving more into the realms of practicality now, owning this bad boy would suddenly make the commute to work seem a lot less mundane. Whipping through the sky on this guy's back, screeching at the traffic jam below would suddenly become the highlight of your morning. As before, there are of course downsides. Feeding and putting a shelter over something that colossal and ferocious is going to be a massive pain. That and to catch the thing in the first place, you need to pounce on it from above. The helicopter hire bill alone would be enough to put most people off. But for those less unsettled by the idea of leaping on to the back of a wild beast in an effort to tame it, The Great Leonopteryx offers a much cooler alternative than the bike lane to work.