All painters have some form of a painter's pallet.  How it is used and what form that pallet takes is as unique as each artist themselves.  I have always used recycled polystyrene meat trays that our grocery meat purchases come in as my painting pallets.  These pallets come from a place of scarcity and repurpose.  Having been raised by parents who survived the Great Depression all to be forced into a better life through immigration as adults, we were taught to consider every scrap of trash as a potential toy, tool or resource with which to build.  I think this scarcity mindset had a uniquely wonderful effect on my creative choices and pursuits.  I also love the fact that collectors can own a piece of the actual creative process.  Each pallet is signed upon completion of each work and is offered for sale.