While black tea is the most common herb to prepare kombucha with, this study introduced nettles leaf, a common medicinal herb, and banana peel, a waste herbal material, as good substrates for preparing fermented kombucha beverage. Final beverages prepared by these new substrates have higher pH in comparison with traditional kombucha; also each one of them presents a new taste, odor and color, different with common kombucha. Final beverages contain considerable phenolic contents and showed significant antioxidant activity. For further investigations we suggest sensory analysis and in vivo evaluation of antioxidant activity of these new kombucha analogues.