What if you could create a new element of your choice?
I would name it after it's atomic number minus one, so I could make it just a little harder for chemistry majors to memorize the periodic table.
For example, if the atomic number was 256, I would call it bipentpentium, instead of bipenthexium. If I ever got to give it a more permanent name (like how ununoctium became oganesson), I'd call it Element Two Fifty Five, because it would just be awful.