In preparation for the Olympics, Goulet Pens put together an Ink Drop sampler featuring the colors of the Olympic rings. Bright vivid colors from Pilot Iroshizuku, Noodler’s, Diamine, J. Herbin and de Atramentis are a nice festive flair for the Olympics. I particularly like the de Atramentis Gold which is not metallic but a good yellow ochre color.
I tested these colors with my vintage fountain pens on my Miquelrius medium flexible 300 grid paper book purchased from B+N.