Most good guns are illegal
Can’t have “assault weapons”, no one knows what those are
In some cities you can’t BBQ on your porch or balconey
Catalytic converters are twice as expensive, must have long warranties
Can’t import most TOY guns
Car engines of new cars must be different
Can’t sell plastic bottled water in public buildings
There are a thousand other, less well-known ones, too.
OTHERS..?
$1,000 fine for throwing a FRISBEE on a public beach in LA County