Spanish ham -
Spanish ham, or jamón ibérico, is some of the finest ham in the world. But it's illegal to buy, sell, or import this processed meat in the US.
High heels -
In Carmel, California, you can't walk through the streets in heels over 5 cm (2 in) high, or with less than 6 sq cm (1 sq in) of heel surface, without a permit.
Masks -
About 15 states have in place anti-mask laws, as do many counties and municipalities, mostly in attempts to prevent mob action during protests.
Human clones -
While there are no federal laws banning human cloning, several regulations exist that restrict the funding of projects that involve such a practice.
Cigarette machines -
The FDA bans all cigarette vending machines except for those in businesses that forbid minors from entering, like strip clubs and bars.
Pre-1985 children’s books -
Children's books printed before 1985 are outlawed in the US because the inks and paints used in the printing may contain traces of lead.
Dog and cat fur -
It's illegal in the US to import, sell, buy, or produce any merchandise made from the pelts or fur of dogs or cats.
Exposing animal abuse -
Several states have so-called "ag-gag" laws, which penalize and prosecute whistleblowers who reveal animal abuse and other violations in the American meat industry.
Sharing login passwords -
In the state of Tennessee it's technically illegal since 2011 for individuals to share login credentials with anyone who doesn't live under the same roof.
Brass knuckles -
Simply designed to break people's faces, several states prohibit the sale, purchase, or possession of brass knuckles for obvious reasons.