You'll be a big fan of the Pure Orange ZIG Memory System Millennium Pen by Kuretake. This ultra-fine marker with smooth-flowing ink features a water-based pigment ink that is photo-safe, xylene-free, odorless, lightfast, and acid-free. Included is one orange 0.45mm (05) tipped pen that is wonderful when sketching, writing, journaling, or doodling on your projects.