Add 6-8 Oolong tea bags to the top of the sun tea pitcher.
Brew in a sunny spot for 4-6 hours.
Puree mango, pineapple, and pineapple juice in a blender.
When the tea is brewed mix in fruit puree mixture.
Serve immediately chilled.
Notes
If you don't want the fruit pulp in your tea, place the fruit into a strainer and press out the juice. Add only the juice to the tea and discard the pulp.