Internet of Things devices are widely adopted by the general population. People today are more connected than ever before. The widespread use and low-cost driven construction of these devices in a competitive marketplace render Internet-connected devices an easier and attractive target for malicious actors. This paper demonstrates non-invasive physical attacks against IoT devices in two case studies in a tutorial style format. The study focuses on demonstrating the: i)exploitation of debug interfaces, often left open after manufacture; and ii)the exploitation of exposed memory buses. We illustrate a person could commit such attacks with entry-level knowledge, inexpensive equipment, and limited time (in 8 to 25 minutes).