Professional/POP Design Portfolio Professional/POP Design Portfolio from Jeff Terwilliger Professional/POP Design Portfolio Samples of work designed and engineered for manufacture both domestically and in China. gLike Professional/POP Design Portfolio Samples of work designed and engineered for manufacture both domestically and in China. 3D Modeling Engineering Hand Rendering Advertising Share R 7 n Available Freelance, Full-time, Moonlighting Jeff Terwilliger Design Engineer Carol Stream, IL Follow Contact