Retro 51 Tornado Rollerball

My top pick for a gift pen. Weighty brass pen with a twist action. There are an endless number of versions.

Variants: There are a ton of different graphics and finishes on these pens. There are also mini ballpoint and fountain pens versions.

Refill: Schmidt P8126/P8127/P8120 short capless rollerball refills and Parker-Style G2.