Here's a page from my daily Moleskine journal. I draw and write with a Gel Xtreme pen by Y&C to make and add watercolor from my little recycled Altoid's tin which is now a handy paintbox.
Making little paintboxes has become a bit of an obsession. I collect flat, lightweight containers such as makeup compacts, vintage metal cigarette boxes, vintage aluminum soap boxes, children's watercolor sets, mint, candy, and cough drop boxes can be converted into little paintboxes. I spray the inside of the boxes with white enamel so I can use this as a mixing area. I order empty half pans and full pans from Daniel Smith and adhere them to the bottom of the box with doublestick carpet tape, fill them with a warm and a cool of 3 basic colors, add a tiny Koi waterbrush, and I'm set to paint wherever I go.
The face is a handcarved rubber stamp that I made from a tracing of a photograph. It was very difficult to carve the details but it's close enoough so that I don't feel the need to re-do the carving.