Lamy retractable Fountain Pen
1964 was the year of this Tokyo Olympics, and Japan had been keen to show to the world. Pilot were one of several formal sponsors, and desired to have some impressive new items to demonstrate. Their many outstanding creation is still best known retractable water fountain pen these days: the Pilot Capless (also referred to as the Vanishing Point in the USA). The first model utilized a twist-action at the top to increase and retract the end, by sliding an internal 'nib unit' forwards and backwards. Later on variations launched the faster push-button procedure, nonetheless used in the present designs.
They aren't cheap pens, so they'd be no good when they were just pretty gimmicks - fortunately, they've been beautifully-engineered pencils, with high-quality nibs, making all of them practical to utilize as well as impressive and convenient.
Assuming you really desire anything impressive? Think about the Italian-made Visconti Pininfarina Carbongrafite - a retractable water feature pen through the exact same designer which provided the entire world the Maserati GranTurismo?