There's a new cooking blog you might want to have a look at. Baking Delights, co-written by Stef Patag (of Do You Like to Cook?) with her daughter Aisa, has a whole category on allergy-free treats. Here are some recipes for dairy-free, egg-free, wheat-free cakes you might want to try:

Chocolate Chip Muffins
Allergy-Free Pumpkin Spice Muffins
Allergy-Free Banana-Chocolate Bread

Or how about making your own allergy-free granola bars or apple oatmeal bars?

For those of you who have wheat allergies, you might also want to take a peek at Stef's list of gluten free sources.

For more recipes, you might want to try to get hold of What's to Eat? The Milk-Free, Egg-Free, Nut-Free Food Allergy Cookbook.