The supply that I'm discussing today has been an obsession of mine for about a year, starting from when I discovered it though an online impulse buy. I had been looking into new ways of getting color onto paper, other than the convention routine of paint or pen. That's when I came across Dr. Ph. Martin's Bombay India ink. Since that purchase, I've added Daler-Rowney neon inks, the Liquitex INK! muted color edition, and others to my growing collection.