The “Yellowstone” alum’s latest project is a line of fragrances.Kevin Costner in 2025Credit: Randy Shropshire/GettyKey PointsKevin Costner is launching his own fragrance line.The veteran actor is known for starring in Westerns like Dances With Wolves, Yellowstone, and the Horizon saga.Costner collaborated with fragrance brand 19-69 after discovering its products in European hotels.Have you ever found yourself watching Yellowstone and thinking yo…