Set an empty egg carton, upside-down, on a baking sheet. Cut 8 small holes in the top of the rounds to hold the pop sticks.
Put the chocolate into a microwave-safe bowl. Microwave the chocolate on HIGH, stirring occasionally, until melted, about 1 to 2 minutes, depending on the power of your microwave. Stir in the oil and cool slightly.
Skewer the bananas with a frozen pop stick. Dip the bananas into the chocolate mixture, freeze until the chocolate sets slightly, about 2 minutes. Roll the chocolate bananas in the nuts, and freeze until firm, about 4 hours. Serve frozen.
You can also roll the chocolate coated bananas in other toppings, like toasted coconut or sprinkles.
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