Request a Sample Thank you for your interest in MPC. To request a sample key chain, please complete the form below. Your First Name (required) Your Last Name (required) Email Address (required) Phone (required) Address City State Zip Code Company Details? Nature of Interest? Design A Custom Part If you have the dimensions of the custom part you need and want to place an order, click here. Ask the Expert If you would like our experts to support you with your part design, click here. Request a Sample Free ring of materials so you have what you need for any project that comes up, request one today!