Oreos are dairy free!

Here's a good list for things that will work, although it's mostly processed sorts of things: http://www.peta.org/living/food/accidentally-vegan/

Some of Trader Joe's chocolates/candies are dairy free. I think Junior Mints are safe as well. Also check out Duncan Hines cake mixes and frostings.

Cake, cookies made with a butter substitute, sorbet, dark chocolate.

Fruit pies and cobblers
Sautéed apple slices with cinnamon and sugar
Dig the skittles and starburst out of the Halloween candy bag
Fresh fruit sweetened with a sprinkle of sugar or honey
Donuts
Cookies!!!!