i think basically any fruit or veggie could be made into a "little snack"
some things come to mind are: baby carrots, grapes, apple slices with peanut butter, "ants on a log" (celery sticks with peanut butter and raisins), the little easy-peel mandarin oranges (cuties), goldfish crackers (they have a whole wheat version), apple/grape juice
something else you could do is just google "healthy kids snack ideas"
and remember, almost anything can look cute and appeal to you in littlespace if you use cute plastic plates/sippies
hope i was able to help somewhat and happy snacking!