ice cubes (or ice)
2 oz of Jack Daniel's Tennessee whiskey (or whiskey)
1 slice of lemon
dr. pepper soda (or Dr Pepper)
1/2 of msr tequila (or Agavero Tequila Liqueur)
Pour jack daniels and lemon juice over ice. Top off with dr. pepper. Garnish with a lemon slice. Stir.