In the past, I've made a few logos/designs from the Back to the Future Series, here is a couple of them.
Hoverboard Logo (Mono)
I constructed this logo from images from the film to create a single piece of art.
Hoverboard Logo (Color)
This is a colorized version of the logo, that incorporates a few extra little things, like the warning, and the non-brand specific branding.
Lone Pine and Twin Pines Mall Logos
I recreated the mall logos from the film, incorporating the time that is displayed on them when they are first seen.
Lone Pine and Twin Pines Mall Logos (Modern)
This was a design exercise to see if I could successfully modernize the logos for the mall in the film.
I think some elements work better than others, most notably in the Twin Pines logo the trees come together to form an "M" which ties the design back towards the mall.
I constructed this logo from images from the film to create a single piece of art.