21.   Some possibilities that come to mind are chocolate chips, chopped nuts, minced orange peel and rum or mint extract.

22.   Some possibilities are chocolate chips, chopped nuts, minced orange peel and rum or mint extract.

23.   Sprinkle with chopped nuts.

24.   Spread over chopped nuts.

25.   Sprinkle top of cake with additional chopped nuts, if desired.

26.   Stir in chopped nuts and coconut.

27.   Stir in some chopped nuts, if desired.

28.   Some possibilities are chocolate chips, chopped nuts, minced orange peel, and rum or mint extract.

29.   Stir chocolate into chopped nut mixture.

30.   Stir in chopped nuts.