Richeson Plexi Palettes
These plexi palettes are available in 3 great sizes. They are more lightweight than traditional wooden palettes and come with a convenient grip.
A great feature of these clear plexi palettes is the ability to put a color (similar to your canvas) behind the clear palette to match the tone of your painting surface. This allows the artist to see what the mixed paint will look like on that color before it is applied to the canvas. This is especially helpful for portrait painters.