My son's response:
Have less drive-thrus.
The U.S. would have 51 states by dividing Texas in half.
I'd make bigger recycling cans.
I'd make there be more NFL teams.
I'd make there be more cool places.
The school day should be shorter.
I'd make there be more orchards.
I would save all endangered living things.
I would tell others to be kind.
I would make sea horses wear mini cowboy hats.
I'd make a new invention for the snow.
Well, at least with some of these I can know with certainty he is my son.