Kick-start the evening with these tangy cocktails spiked with vodka and Cointreau. Add fresh mango slices to the rims of the glasses for a classy presentation.

Source: http://www.delish.com/entertaining-ideas/parties/cocktail-parties/summer-cocktails

Calling all citrus lovers. This cocktail is full of all the sweet, tart, and tangy flavors you love in your citrus fruits — citrus vodka, Triple sec or Cointreau, orange juice, and lime juice.

Source: http://www.delish.com/entertaining-ideas/parties/cocktail-parties/summer-cocktails

Lemonade and summer go together like sand and surf. Try this premium vodka-enhanced version of the classic warm-weather beverage. If you're feeling adventurous, try substituting freshly made Limeade for the standard lemonade.

Source: http://www.delish.com/entertaining-ideas/parties/cocktail-parties/top-summer-cocktails

Watermelon Pucker, citrus vodka, and triple sec turn this martini into a sweet treat. A splash of orange juice and 7-Up ensures easy sipping.

Source: http://www.delish.com/entertaining-ideas/parties/cocktail-parties/summer-cocktails