If you want to rim your glass, rub a lime or orange wedge around the rim of your glass. Pour salt or tajin onto a small plate. Dip the glass into the salt or tajin until the rim is covered to your preference.
Add tequila. lime juice. orange juice, water, and agave to a cocktail shaker. Shake vigorously and pour over ice in your glass. You only want to fill your glass about 1/3 of the way.
Place tajin mango popsicle in your glass and enjoy