Twice in the last few days people have asked me if I can make stickers for children to color. Why yes, why yes I can... And it actually didn't take much research.
I went into Canva (paid account), began a new file, looked in Elements, Graphics, and found this "wise owl" in full color.
I then went to Edit, Style Match and choose Lineart and it took about a minute and got the outlined sketch.
In Cricut, I'll put a small offset, 0.11, around the image, make it white, attach and flatten.
When I cut it on the Cricut, I won't laminate it so the coloring will stick, and I'll tell it to do a light cardstock.
I'll post photos of the stickers later.
Let me know if you have any questions.
This is something you could sell for a kid's birthday and make custom images.
xoxo
Sara