The Harvey Wallbanger is said to have been a marketing concoction from the Italian liqueur company Galliano that used a cartoon of a goofy surfer in one of their campaigns. Mixed with the ingredients of a screwdriver this is a sweet and tasty cocktail that became incredibly popular in the 60s and 70s.
A classic drink to have in your cocktail arsenal. Created during, where else, spring break in Florida. This concoction was the winning original drink in a contest between local bartenders. And don't let the risque name fool you, this one's nothing but sweet.