In a small pot or saucepan, whisk together the sugar, flour, and salt.
Drain the pineapple tidbits, reserving the pineapple juice. You should get ½ cup juice.
Whisk in the ½ Cup Pineapple Juice and well-beaten egg.
Over medium heat, while whisking constantly, bring the mixture to a boil.
Once it thickens, remove it from the heat to cool to room temperature.
In a new pot, cook the acini de pepe according to package directions.
Drain and rinse with cold water.
Dump the cooked acini de pepe in a mixing bowl.
Mix in the pineapple curd and whipped topping
Fold in the pineapple tidbits, mandarin oranges, mini marshmallows, and flaked coconut.
If you choose, you can chop up the maraschino cherries and mix them in as well.
Chill for 2 hours before serving.
Top with maraschino cherries for garnish if desired.