The sky is your canvas with the skywriting journal, it is similar to the walls notebook which is perfect for graffiti doodles. The pictures in these notebooks are your pages, your canvas. Unfortunately for me they more likely to inspire me to doodle, than write but i find them inspiring nonetheless (and relaxing in the case of the sky journal).
Pictures and photos make a great canvas or backdrop for a notebook, and a recycled or up cycled notebook is frequently made up of such images. Ideally what pictures do you think make the best canvas?
Personally I love postcards. Postcards as a canvas are great, provide inspiration but leave room to write and you get so many classic images on postcards. My favourite postcards as landscape scenes, quirky sketches and vintage art.