Working with collage is one of the most exciting and creative ways to work, as it has no limitations. You can include almost anything to collage work, not merely paint. I recommend keeping it simple for the first couple, then introducing more mediums, items as you gain confidence. You will learn this as you progress with collage art. You can incorporate items you find all around you. Just as an extreme example, Jackson Pollock, the American abstract expressionist artists, after dripping paint over his canvas, would at the end of the day take whatever he had in his pockets and toss them on to the oil painting, allowing them to stick!
To get a flavour of what is possible, click here for examples of what artists can achieve.
Start with a sketch...
What materials do you need?