K.E.
Wow Soy is a hard allergy to work in. I feel for you my son is allergic to eggs. um, lets see, can you do carot sticks(cook them so they are soft enough for her to chew)
If you are only removing milk right now, I believe teddy grahams are milk free, double check though. Jello with bananas in it.
I am going by memory here sorry. I heard walmart has rice milk. I would also try talking to your grocery store about stocking rice milk. Do you have family in a bigger city that can get you what you need?
Talk to an allergionist for suggestions too.
Good luck,