The book is called "A Complaint Free World" by Will Bowen. You can find products, including the bracelet, on the website which you can get to by searching the title.
The book is : A Complaint Free World by Will Bowen. Both the book and the purple bracelet are available at the non-profit website. Do a google search for the title and I'm sure you'll find it. T-shirts and a widget to track progress are also available.
The bracelet comes with the book, "A Complaint Free World" by Will Bowen. The organization has a website that is the full name of the book followed by dot org.