A quick and easy snack for the kids: Peanut butter and apples.
1 part peanut butter
1 part non-dairy yogurt (I found that the vanilla-coconut yogurt was sweet and kept me from having to sweeten the mix)
To that base (tinker with the proportions if you desire) you can add some dry sweetener, cinnamon, or vegan marshmallow cream to fancy it up a bit. Though we found that it was quite delicious without any further additions.
For another fruit dip idea, try mixing vegan cream cheese substitute (or vegan marshmallow cream) with high-quality strawberry jam.