POP Design POP Design from Jeff Terwilliger POP Design Samples of work designed and engineered for manufacture both domestically and in China. gLike POP Design 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 Villa Park, IL Follow Contact