Creating mixed media or assemblage art requires you to make a lot of choices. One of the first things you need to do in creating an assemblage or mixed media art is to pick your base. Sometimes I even like to pick my base first and use it to guide the creative process. For example, I may decide to use a small metal flower trellis as my base, which may lead me to decorate it with silk flowers, butterflies and birds.
The base you choose also depends on what you’re creating. If you are making a card, you probably want to use cardstock, if you’re making wall art you may want to use a canvas or heavy water color paper that can be framed. However, just keep in mind that your options are not limited to art supplies.
You may want to pick a base that compliments your subject matter. For example if your theme is named “Grandma’s orchard,” you may want to use a shallow, wooden fruit crate. If you are creating a historical theme from long ago, you may want to use an old, weathered board or some kind of a rusty metal surface.
Some things to think about as you pick your base: Is it strong enough to hold your pieces? Will the finished piece be hung on a wall or will it be set on a stand? Will you be painting or decoupaging the background? Will moisture cause your base to buckle? If you glue objects to it, will it tear the paper or paint away from the base? (This can be an issue with smooth, nonporous surfaces.)
You’ll also need to think about what you’ll use to adhere your pieces. You could glue them or fasten them with wire or something like twine or leather cord. Brads, nails or screws are other options. Think of your fasteners as another way to add interest and texture to your composition.