I use a variety of surfaces for my mixed-media creations. Nothing is off limits, from rice paper, cardboard and newsprint to bark paper, wood and plastic. Experiment with different substrates for a variety of results. Here is a sampling of ideas to inspire you.
Brown paper bag.
Kids’ storybook paper.
Newspaper and newsprint.
Paper towels.
Fused plastic bags.
Drill cloth, muslin or canvas.