Originally Posted by
Sonic Mountain
As long as you aren't trying to profit off it or being malicious/affecting the brand, it is fair use and not a problem at all. If it were a smaller creator it would be polite to ask, but this is such a universally known pop icon, it's well within the realm of fan creation fun.
George Lucas is famously open about letting people play with the Star Wars properties. He even voiced himself in the Robot Chicken spoofs (which are hilarious if you haven't seen them). Disney probably takes a different view, but the fans are the reason the franchise exists so it's not in their interest to discourage this kind of thing.