Remember watching Back to the Future and seeing those killer auto-lace sneakers Marty McFly had? Yeah, so do we. Often called the greatest shoe Nike never made, the sweet kicks from Back to the Future are now a reality, minus the auto laces. The Nike MAG is a limited edition shoe, with all 1,510 pairs auctioned off and proceeds going to the Michael J. Fox Foundation for Parkinson’s research. Although the original auction is over, you can still score a pair on eBay for around $5,000. If that seems a bit steep, you’ll just have to build a time machine into a Delorean ….