I love them all.
Best of all the Ink Sprays and Ink Pads are fade resistant on glossy paper, waterproof for watercolours and markers and dries permanently and quickly on most papers.
Hero Arts Neon Ink Sprays are available HERE and are $8.95 containing 1 ounces of ink spray.
Hero Arts Neon Ink Pads are available HERE and are $8.95.
Also from Hero Arts Ink Daubers available in a variety of colours including Neons.
Available HERE for $7.95