Amazon offers the Gatorade Prime Energy Chews 16-Pack in Fruit Punch or Cool Blue for $16.32. Order via Subscribe & Save to cut the price to $15.50 and bag free shipping. That's around a buck less than what you'd expect to pay at your local store. Each sleeve includes six chews, each with B vitamins.
Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.