1 1/2 oz of Bacardi Limon Rum (or lemon-flavored rum)
2 oz of 7-up soda (or Sprite)
2 oz of club soda (or clear soda)
1 splash of sweet and sour mix
Pour bacardi limon into an ice-filled collins glass. Add sweet and sour mix, and fill with equal parts of club soda and 7-up.