First vehicle from the Back to the Future trilogy you'd like to own? Yeah, the DeLorean holds the top spot. But what about second place? The hoverboard of course! But not that kid's one McFly ends up with (and, as it turns out, is junk in real life), the one you want is Griff Tannen's "Pit Bull". Good thing it's up on eBay right now.
There are, of course, a few catches. For one, there's the Buy It Now price of $US12,995, though you're free to make an offer via the auction page. It's also over 20 years old and features "minor dents and paint scratches".
Finally, it doesn't actually hover, but you probably already knew that.
The auction description describes it as a prototype "hero" prop, which means it was built to be seen on screen and not for stunts or special effects (though this particular one apparently never made it in front of the camera). As such, it features a lot of detail, as you can see from the photos here. The board itself is over 90cm in length and is built from metal, wood and resin and, best of all, it comes with a certificate of authenticity (yeah!).
Nearly $US13,000 seems like a lot to ask, even considering its pedigree. That said, I'm sure someone will shell out the dollars for it.