Naturebox offers a NatureBox Taste of Better 5-Snack Package for free with its membership trial. With free shipping, that's the first such snack pack bundle we've ever seen for free. (For further comparison, we mentioned a 3-snack pack for $5 total in June.) It contains single servings of sea salt sun crunch, garden tomato crunchies, coconut cashews, and cinnamon swirl kettle kernels, plus a full-sized mystery snack bag.
Note: Once you receive the first package, be sure to cancel your subscription; otherwise, you'll be charged $19.95 per month for a new snack box shipment.