Well Michelle Ward over at GPP Street Team put out a challenge: don't paint your surfaces - scrape them.
So I did. Here is what happened when I did it in the Studio's 1001 Journal And here is what happened when I scraped the inside of a cereal box.
See those cool little polka dots? They come from holding the scraping card at a very low angle while running across the page.
So take the paint onto the card in a thin layer an inch (5cm) or so up from the bottom (not just on the edge)
and lay the card down pretty low to the paper as you scrape across. It makes the paint skip in bubbles and bursts across the page and the bottom edge is not pressed so fully down as to homoginize the line of paint.