I make cake balls and they're delicious! I take my left over cake, crumble it up, add enough buttercream icing to hold it together, then I take a mellon baller and scoop it up, roll them in a tighter ball, freeze then, then dip in melted chocolates. Wonderful!!! I've also used white chocolate gauache instead of icing and those were delicious also. Time consuming but well worth it!!!