Estamp Mammoth Dreyer's Gorilla Treestands Elephant NewSun Fallen Heroes Eastman Outfitters First Street Headsprout Perdue Currenex Currenex Currenex is the first online foriegn exchange. The challenge was to create a mark for a new online entity, that felt reputable in a financial arena, while maintaining the feeling that it was something new. The X mark has 2 lines through it resembling the majority of currency icons. And arrows create the X to resemble an exchange.