Back to the Future II gave us an awesome glimpse of the future where sneakers automatically laced themselves. What the movie left out, however, was that those sneakers would cost you $720 a pair. Oof. But if you’ve got a bit of Lego lying around at home, you can give any shoe self-lacing powers on the cheap.
Source: Gizmodo – Save 0 and Build Your Own Pair of Self-Lacing Sneakers Using Lego