2ml sample of Ferris Wheel Press Peter Moss fountain pen ink, an olive green color. Peter Moss is part of the Bookshoppe collection. Ferris Wheel Press fountain pen inks are available in many distinct colors that spur excitement, creativity, and a feeling of absolute joy every time you write. The water-based inks are suitable for all fountain pens, and are made with the highest quality dyes and resins, featuring rich and saturated tones.