I didn't have most of the materials so I improvised :)
Covers and lining made from delivery boxes, old wallpaper, billboard pieces that I ripped from the street, some adhesive paper I had laying around.

This is a watercolor piece of mine. Looks lovely in the black covered notebook.

I like using billboards for the cover. They are printed in huge sizes so it gives a nice texture to the original picture.

 

 My utility knife isn't the best but I kinda like this ruff finishing to the pages, everything a bit crooked, very handmade feel to it.