Illegal for a man to give his sweetheart a box of candy weighing less than fifty pounds.

You may not fish on a camel's back.
Riding a merry-go-round on Sundays is considered a crime.

Boise --

Residents may not fish from a giraffe's back.

Pocatello --

A law passed in 1912 provided that "The carrying of concealed weapons is forbidden, unless some are exhibited to public view."

A person may not be seen in public without a smile on their face.