StazOn Really stays on whatever you stamp
I love this brand of stamp pads! StazOn is great for stamping on tiles and plastic as well as other non-porous things. A favorite gift I like to make is to create a set of coasters using 3X3 tiles from the home improvement stores. I typically buy the smooth tiles that look more stone-like. Stamp the image, then use a blender pen or sponge applicator rubbed into various StazOn colors and use this to color the image.
This ink also works great on shrink film.