* Create and sell adult coloring books on Amazon Createspace, Lulu and other print-on-demand websites. Most books are 25 pages long -- you can make two!
* Create social media profiles promoting adult coloring books and give the pages away as an incentive to join. Then,
sell (or promote) coloring supplies for profit.
* Use the coloring book pages for lead generation purposes -- give 'em away as part of a contest, or for signing up to your mailing list.
* Offline marketers can use the designs to promote their business at meetups and coloring clubs.
Check Google -- they exist!
