For acrylics, a non-porous palette, such as a large sheet of glass or enamel butcher tray works better than the traditional wooden palette, which will absorb water from the paints. Wood, glass, and enamel palettes are all suitable for oil painting. Watercolor paint works best with a palette that contains multiple wells, these are usually plastic. Disposable paper palettes have a special coating that allows artists to mix colors and media without it sticking or absorbing, they work with most paints. When one is done painting, these palettes can be thrown away in accordance to your region’s disposal guidelines.