I've been developing ways to sew and wire some rather impressive light-up clothes that look like they come straight from the Tron movies. Whenever I wear this gear to events, conventions, or just out and about, I get people who ask me if I sell them or if I do commissions. My question is whether or not I could legally sell this stuff on platforms like Etsy.
If I can do so, what is the line, so to speak, of how close I'm able to get to Disney's property without breaking copyright? Obviously, I won't be listing these garments as "Tron Costumes" or using the names of other characters or anything, nor would they be designs directly taken from the movies, but how different would the designs have to be? Can I keep the sort of circuitry-inspired angular designs? Could I sell the back-mounted disks? Would the disks have to look completely different?
Thank you for any advice!