Adult stress relief by coloring

This concept has fallen in my lap several times in the last month. As I have learned from other self-help books, such realizations are typically fate slapping you in the face until you notice. Hence this last case of it coming up makes my self=help list of the day. Here are a few references that detail out the concept:
10 Adult Coloring Books To Help You De-Stress And Self-Express - by Huffngton Post

A paper coloring book available at Amazon

I have the Idea I can create some  great pages by taking a few of my own photos, and using photoshop or other tools to simplifu them into black and white outlines suitable for coloring. I have not gotten there yet, but perhaps this prod by fate will get me to try today.