(Sorry for late post as my phone was acting odd - might get a new phone...)
Finally, after many requests, I have made a coloring book! This one is based on the recent Mermay series, with many details to color! Since this is my first one, I might do some more in the future (especially after learning new things from this).
I will be selling these new books at cons! Unfortunately, I only have a limited stock at hand since this is first run of coloring books.