It's not just San Francisco that likes banning weird things: Oddee rounds up 11 notable examples from around the world:
Australia: Porn Featuring Small Breasts
While the law doesn't outright ban porn featuring small breasts, the ABC has the right to ban all adult films that depict a woman as being under 18. While this idea sounds fine in theory, the group has actively rejected some films based solely on the breast size of the actresses involved.
China: Game Consoles
Greece: Video Games
Fortunately, after receiving pressure from the EU and video gamers everywhere, the law was found to be unconstitutional by the end of the year.
China: Avatar in 2D
Russia: Emo Clothing
The government went so far as to dub the style “a threat to national stability” before banning people from wearing emo clothing to public schools or government buildings. Don't worry sullen teens of Russia, you can still listen to all the forlorn emo music you want, you just can't dress like you listen to it.
China: Reincarnation Without Prior Consent
Iran: “Western” Hair Cuts
Saudi Arabia: Valentine's Day
Denmark: Ovaltine and Marmite
Update: According to the Denmark Embassy in England, it's not illegal to sell or possess Marmite, just to advertise it.