I will take a page of your choice from your children's book, and hand-draw a coloring page for you! I willl provide it in a 300 DPI PDF and I'll include any info you want on the page (like your website, a QR code to your book on Amazon, etc).
 
This is a great way to promote your children's book, and it's a nice handout to have when you are doing books signings and other events.
 
In the example shown here, I added extra details so that kids would have more things to color in (instead of big empty spaces).