Chop the bananas into a large bowl and using a potato masher, mash them until they are smooth. Mix in the orange juice and rind. Stir in the ground almonds, mixing well to blend evenly. Place the mixture in a refrigerator and chill for approximately 30 minutes. Using a sharp knife, finely chop the blanched almonds into small pieces. Mix the chopped almonds into the cocoa powder, and place on a flat plate. Remove the banana mixture from the refrigerator, and divide into 10 portions. Roll each portion into a small ball, using lightly floured hands. Roll each ball into the cocoa and almond mixture, rolling each one evenly to give a good coating. Press gently before placing into a small paper cases, and chilling once again. Author's Notes: Variation: Use walnuts in place of almonds Tips: Do not keep for long after they have been made, or the banana will go brown and wet.