You might run out of ink using the little squares for your ink source. If you really want to use ink and not pattern paper, I would go out and buy a bigger ink pad at a local stamp store or hobby store and some sponges or finger daubers.
Then use the sponges or daubers to apply ink to the the card stock.
"The quickest way for a parent to get a child's attention is to sit down and look comfortable.
Practice safe eating - always use condiments.