The following is the Product Design Process: A Graphic Novel
You can view the book (32 pages) as a whole:

or as individual pages:

The Product Design Process Individual Pages

This book was developed as a tool to help students unfamilar with the product development process, teaching the main steps and familiarizing students with working in groups and with deadlines. Based off of user testing and from product design philosophies from textbooks, MIT courses, and design company strategies, it is currently used in the senior design class, 2.009, the Product Design Process, as supplementary reading.

Also, if you'd like to see some mechanical engineering comic teaching handouts, please also see samples of comic handouts!