Detective Pux here, and I'm ready to tackle the question of the cheapest airplanes you can own. Now, before we start, let me just say that if you're looking for a luxurious private jet with all the bells and whistles, you're in the wrong place. But if you're willing to settle for something a little less flashy, I've got some options for you.

First up, we've got the paper airplane. It's lightweight, portable, and best of all, free! Sure, it might not get you very far, but think of all the money you'll save on fuel. Plus, you can fold it into all sorts of cool shapes, like a swan or a fighter jet. Just be careful not to get a paper cut.

If you're looking for something a little more substantial, you might consider the balsa wood airplane. These little beauties are a classic toy that have been around for generations. You can buy them pre-made for a few bucks, or if you're feeling crafty, you can build one yourself from a kit. Just be warned, they're not the sturdiest of aircraft, so don't expect to take them on any cross-country flights.

For those with a bit more cash to spare, there's always the option of a remote control airplane. These come in all shapes and sizes, from tiny little drones to massive scale models of real planes. And while they might not be able to carry passengers, they're a heck of a lot of fun to fly around the park. Just don't crash it into any trees or unsuspecting pedestrians.

Now, if you're really serious about owning your own airplane, but don't want to break the bank, you might consider a used ultralight. These are small, lightweight aircraft that are designed for one or two people and are powered by a simple engine. They're not the fastest or the most comfortable planes out there, but they can be a lot of fun to fly. And best of all, they're relatively cheap. Just make sure you get it checked out by a professional before taking to the skies.

And finally, we come to the ultimate in budget-friendly aviation: the imaginary airplane. That's right, you can own an airplane that exists only in your mind, and it won't cost you a dime. Just close your eyes, picture yourself soaring through the clouds, and let your imagination take flight. Sure, you won't be able to actually fly anywhere, but think of all the money you'll save on maintenance.

So there you have it, folks. A few options for the cheapest airplanes you can own. Whether you're looking for something fun and frivolous or a little more practical, there's something out there for everyone. And if all else fails, just remember: the sky's the limit... unless you're flying a paper airplane, in which case the ceiling is the limit.