With its mild climate, seaside location, and diverse neighborhoods, San Diego's small businesses never lack for influence or inspiration.

In celebration of the upcoming San Diego Entrepreneur Day (September 27-28), we found the 24 coolest small businesses in San Diego.

There's a sandwich shop that fills its sandwiches with local fish found in San Diego waters, a candy store that draws on flavors from south of the border, and a hair salon named for the newly proposed city streetcar system.

Having so many different influences makes for some crazy, unusual, and downright cool companies.