You've probably doodled with one of these in class: a blue Bic pen. But when Oscar Ukonu uses ... That's how much intensity creating these portraits requires. Intensity, and a lot of skill.

IT'S A KEEPER: This is one pen you won't be lending. French jeweler Tournaire and Bic have teamed up to give the inexpensive Bic Cristal, no less than the world's most-sold ballpoint pen ...

His preferred tool is a standard Bic ballpoint pen, leaving no room for mistakes, slips or smudges. James Mylne's hyper-realistic portraits are already incredibly impressive but when you learn ...