School started this week and it turns out there are some restrictions on what we can send as a snack. Basically, it should all be low fat (no trans fat), low sodium, and whole grain. Nuts and nut butters are not restricted. Pretzels, chips, and non-whole grain crackers are not allowed.
Yesterday I gave my daughter grapes and a cut-up piece of string cheese, which she thought was the best snack ever. Today I gave her half a stick of string cheese, a handful of low-salt wheat thins, and some pitted cherries. We'll see how she likes that.
Some of the suggestions from the school include cheese, low-fat low-sugar yogurt (no go-gurt, too much sugar), fruit, and cottage cheese. I'm thinking apple slices and peanut butter will be the next experiment, or cherry tomatoes and cottage cheese.
Thanks for all of the suggestions! I had forgotten about bumps on a log, which was one of my favorites as a kid (though my daughter hates celery and raisins, so that one won't work for her). I also think I could make her some oatmeal and put it in a thermos -- it should still be warm at snacktime. Cheerios may also be a nice treat.