Mix the cream, cream cheese, and sugar until smooth.

Add a little milk and brewed coffee to thin the mixture.

Crush the ladyfingers completely in a mixer and add them to the mixture.

Mash the banana and add it to the mixture, then knead/mix well until combined.

Take portions of the mixture (about the size of a walnut) and shape them into small balls. Roll the balls in cocoa powder.

Place a piece of walnut on top of each ball.