coloring page..using only 3 colors

Is there a size requirement? can we fold it to ship?

Can we use a colouring postcard instead? Or does it have to be a page out of an actual book?

Why only three colours? Just curious.

Another question: can you photocopy or print out an adult colouring page instead? The books are pretty expensive where I live.

do different shades of the same color count as one color of are they considered different colors?

Yes the page can be folded to mail.yes you can use coloring post card.you may photocopy the coloring book page.i thought it would be cool to just use 3 colors.yes..different shades of one color is fine.