1 1/2 cups lychee syrup (can be found with the canned lychees in the Asian aisle of grocery stores)
1 cup lemonade or sparkling lemonade, store-bought
4 slices lemon or lychee, scored halfway down its center, for garnish
Mix the black tea, lychee syrup, and lemonade in a large pitcher and chill in the refrigerator for at least 1 hour. Serve the lemonade over ice, and garnish each glass rim with a slice of lemon and/or lychee.