I've found "Virgin Empty" is used () cartridges on eBay, but I have not found never-used/never-filled cartridges. I do not care, what brand is the cartridge, the availability of empty cartridges is what brand printer I buy, not vice versa to be determined. The cartridges must be absolutely clean and sterile!
You should look up on Amazon, they have some cheap and brand new: http://www.amazon.com/exec/obidos/ASIN/B0009WGV7U/104-8992182-2676741
People committing sins under ignorance are forgiven and not when they claim to be knowledgeable.
Elmer’s Products Bienfang Watercolor Brush Pens give outstanding results and feature professional-quality self-wicking brushes and acid free blendable permanent ink. Perfect for watercolor painting card-making scrapbooking and more! This package contains eight watercolor brush pens in a variety of colors and one empty blending brush and all nine pens come in a reusable vinyl case (7-1/2x5in). Non-toxic.
