Kaweco Perkeo
The Perkeo range combines the distinctive octagonal cap from the Sport range with a 16-sided hexadecagon (yes, we had to look it up) barrel. Pretty colours and excellent pricing mean you can add a little quirkiness to your everyday writing.
Why 'Perkeo'? The pens are named after a court jester in Heidelberg, back in the early 1700s.