MICHAEL J. FOX's LEFT self-tying shoes from the 1989 flick Back to the Future 2 sold on eBay for $92,100! Yes, Michael actually wore it in the movie.
Obviously, the shoe doesn't REALLY tie itself, as the technology wasn't there in 1989. But in 2016 Nike did produce 89 pairs of LEGIT self-tying shoes.
The 1989 movie shoes are basically falling apart at this point. I would still buy it if I had that kind of money and keep it behind glass as is!