These are quite amazing without any additions, but feel free to add your favorites, like chocolate chips, raisins, or even freeze dried berries.For substitutions, you can use maple syrup in place of honey. I haven't tested flax seed egg or chia seed egg, but I bet they'll work. Same goes for cashew butter or other nut butter; the flavor will change some what according to the nut or seed you use.If you use sunflower seed butter, you may want to add 1/2 teaspoon of lemon juice to prevent it from turning green.When testing, I used 1/2 a jar of Trader Joes' creamy unsalted roasted almond butter, but any brand of raw or roasted almond butter will work. Just make sure there's no added salt or oils. Just pure almonds, ground into creamy goodness.