No. 13 Paper Mosaics

Create paint textures on any surface that can be cut into tiles after the paint dries. Use watercolor, acrylics, crayon, or ink. Adhere the tiles to a canvas, dimensional object, or any other surface with acrylic gel medium. Then paint over your tiled piece, using glazes and impasto techniques or simply coat with clear acrylic varnish.
Kid Friendly
[From “151 Uncommon and Amazing Art Studio Secrets”]

No. 64 Cork Art

Cork has natural beauty. Paint onto flat cork with acrylics, oils, or opaque watercolor, allowing it’s natural color and texture show. If your paint does not adhere to the surface, coat the cork with clear acrylic medium first.

Cork is especially rewarding for collage because it tears well, leaving a lovely deckled edge. 

You can cut cork easily, as well. Cork sheets, rolls, and squares are available from crafts stores.
Kid Friendly
[From "151 Uncommon and Amazing Art Studio Secrets"]