I bought new acid free art materials this week which I'm kinda digging. They are water-based stamp pads called Distress Inks by Tim Holtz that can be applied to paper, wood, and even photographs. Typically you would use a paper tortillian to accent certain areas of photos to age and weather them, but I used the stamp pad raw and punched and dragged the square pads throughout the paper directly. It created a great abstract effect that I know I could use in future projects.