Plastic Holding Fixture for Laser Machine

I need a fixture designed to hold a part, like a set screw, for a laser machine. Requirements: - The fixture should be made of plastic. - It must be robust enough to securely hold the part during the laser operation... (Budget: $10 - $30 USD, Jobs: 3D CAD, 3D Design, 3D Modelling, CAD/CAM, Manufacturing Design, Mechanical Engineering, Product Design, Prototyping)