-Paint brushes in a variety of sizes.
-Scissors for cutting fabric.
-Glue for adhering fabric layers to each other.
4. Allow the gel to dry, and then add a frame of paint dots. I learned this technique from the marvelous book Mixed Mania-- using a dried up ball point pen (or the non-bristle end of your paintbrush), create dots around the edge of the canvas in one color, and then go back and use a second color.
You can hang these individually or as a series, adhere them to a larger canvas or to a piece of wood. I have a gallery lined up on my patio fence.
Here are some additional resources for collaging:
Taking Flight: Inspiration & Techniques to Give Your Creative Spirit Wings by Kellie Rae Roberts
Mixed Mania: Recipes for Delicious Mixed Media Creations by Debbi Crane and Cheryl Prater
The website of artist DJ Pettitt also has some wonderful fabric artwork that will inspire you.