Role

Concept & Production

Client

Self-initiated

Year

2026

Momo & Friends

Momo's Maze Adventures – cover Momo Monsters – cover

Children's activity books – designed by me, approved by my son.

It started at home: I began making activity books for my four-year-old son. He loved them, so I figured other parents might too – and turned it into an ongoing Amazon KDP series. Spoiler: I won't get rich. But building these is a blast.

Each book follows the same little production system: simple themes, clear page concepts, child-friendly tasks and illustrations built through a consistent AI pipeline. My goal was never to flood Amazon with random AI slop – but to make books that feel considered, playful and actually fun to use.

Every coloring page is designed for small hands: thick outlines, simple shapes, generous white space, no bleed-through and enough variety to keep kids busy without overwhelming them. I created the little “Momo & Friends” label to make the whole thing feel like a real book series – not a folder full of unrelated coloring and activity books.

It's an ongoing side project: part creative playground, part publishing experiment.

Tools used: Claude, Higgsfield, Nano Banana, Midjourney

© 2026 Mathias Mueller Imprint Privacy