Add the lemon juice, mango syrup, and hibiscus tea to a cocktail glass.
Fill the glass with ice and stir until all the ingredients are combined well.
Top the drink off with the ginger beer and gently stir a couple times.
Optionally, place the mango slice garnish on top of the drink, and sprinkle the dried hibiscus flowers on top (or stick the hibiscus to the side of the glass using lemon juice before making the drink).
Serve and enjoy!
Notes
If you don't have hibiscus tea, try using raspberry tea.
You can use seltzer or lemon-lime soda in place of the ginger beer.
You can use store bought mango syrup, or you can make my homemade Mango Nectar recipe.