Combine coconut milk, bananas, peanut butter, Custard Cream flavour, Classic Vanilla flavour, agave syrup, and salt in a blender. Purée until smooth.
Pour and divide into popsicle molds, leaving some space at the top for the liquid to expand. Cover with a lid if available and insert sticks.
Freeze for 6 hours or overnight for best results. To remove, leave at room temperature for 5 to 10 minutes or run under warm water to remove pops from molds.
Melt chocolate and coconut oil in a microwave-safe bowl in the microwave until just melted, 60 to 80 seconds. Stir until smooth and let cool slightly before dipping and drizzling over popsicles; sprinkle with peanuts (if using).