Add 1/2 cup dry sticky rice and 3/4 cup water to a rice cooker or small pot on the stove and cook until the liquid is absorbed. When rice is done cooking, mix in salt, rice vinegar and sugar. Set aside to let cool at least an hour before refrigerating or using, or make up to 2 days in advance and refrigerate until you go to assemble the stacks.
Meanwhile, mix together ingredients for guacamole (or just use mashed avocado) and mix together mango salsa, along with bang bang sauce.
Use a 1 or 2 cup measuring cup to spoon ingredients. NOTE: I used a 2 cup measuring cup and it was the perfect size for dinner - you can use a 1 cup measuring cup to make 4 stacks that are better suited to be served as an appetizer. Spoon mango salsa into measuring cup until a there is a thin layer, then spread the avocado mixture overtop. Layer with shrimp, then strips of nori, then sticky rice.
Press down hard, then trace with a knife all the way around the measuring cup to loosen mixture. Tap on the top of the measuring cup very hard, dumping onto a plate, careful to make sure mixture remains in tact.
Top mango salsa with crumbled wonton or tortilla strips, then drizzle bang bang sauce overtop using a plastic bag with a tiny hole cut out in a corner. Sprinkle with sesame seeds then serve and enjoy!