In a food processor blitz the ginger biscuits to fine crumbs.
In a double boiler melt the white chocolate. Once the chocolate is melted add the coconut powder and ginger biscuit crumbs to the chocolate and mix well. Spoon into the mould and tap. Refrigerate for 1 hour or until set. Remove from the mould. Melt the milk chocolate or peanut butter and fill it in a piping bag. Pipe in the middle and decorate with edible balls or fondant leaves.