mini sandwiches
cheese plates
truffles of various sorts
champagne and wine, but it's not just a free-for-all in that department. Dani wouldn't do anything to get dad in trouble.
some other "classy" but not messy appetizers, like these:
http://www.marthastewart.com/333923/mini-asian-crab-cakes?czone=entertaining%2Fcocktail-hour%2Fparty-food-recipes&gallery=274748&slide=333923¢er=276959
http://www.marthastewart.com/354657/ham-and-gruyere-thumbprints?czone=entertaining%2Fcocktail-hour%2Fparty-food-recipes&gallery=274748&slide=354657¢er=276959
http://www.marthastewart.com/316783/lemon-parsley-gougeres?czone=entertaining%2Fcocktail-hour%2Fparty-food-recipes&gallery=274748&slide=316783¢er=276959