A paint holder is an essential tool for any artist. It can come in many forms, such as a SEALER (6 letters), which is used to keep paint from drying out; a palette (7 letters), which is a flat surface used to mix colors; a TUBE (4 letters), which is a container for storing paint; and a STABLE (6 letters), which is a container that holds the paintbrush. All of these items are necessary for an artist to create their artwork.