This document provides examples of low-fidelity prototypes for usability testing, including a Palm Pilot prototype, a medical equipment prototype from IDEO, prototypes of a Polaroid camera from a 2011 MOMA exhibit, a physical device prototype made of cardboard, a kiosk prototype from NNgroup, and examples of hug-your-laptop video recordings and screen/face recordings using Quicktime for testing purposes. Citations and image sources are provided for each prototype example.