Combine the whiskey, peach schnapps, and sour mix in a cocktail shaker with a couple of ice cubes. Shake for about 10 seconds to combine all of the ingredients. Pour your shot glasses 3/4 full with the green tea shot mixture, using the bar strainer to keep the ice from falling in. Top off each shot with the lemon-lime soda. Enjoy your green tea shot shortly after it's prepared.