agreeing with what runz and secondary said...
I'm digitally based and my daughter is hands on.
She did this to get a good pattern to use in adobe for her backgrounds:
She tore a few edges and burnt a hole or two in crumpled and then flattened piece of old plain papers and printed pages. Taped them on a cookie sheet in the sink, then just experimented with drips, rings and washes, using everything from peroxide and bleach to watercolor and coffee.
Some she rinsed after it set for awhile, (the peroxcide and bleach), others she just let dry as is.
The torn edges really took on a good darkened 'grunge' look with the water color washes.
The type of paper will make a difference and you can play around with it and get some interesting results.