Tsukineko - VersaMark Watermark - Stamp Pad
VersaMark allows you to perform a number of amazing techniques. Stamp your image onto text-weight paper to explore the possibilities of watermarking, or stamp subtle tone-on-tone images onto colored cardstock. Create a resist image by stamping on glossy and brayering with dye ink. VersaMark is so sticky that it will act as a "glue" for chalks and pigment powders.
Refill with VersaMark Watermark Ink Refill
Have not used this yet but looking forward to it.