1Stir chocolate and oil in heavy small saucepan over low heat just until smooth. Let stand 15 minutes to cool.
2Place each topping in separate shallow dish. Line baking sheet with foil. Arrange banana slices on foil. Using fingers, dip 1 banana slice in chocolate, coating completely. Shake off excess chocolate. Drop dipped banana in 1 topping. Using clean hand, sprinkle more topping over banana to coat; transfer to foil-lined sheet. Repeat with remaining bananas, chocolate, and toppings.