Looney Tunes Marvin the Martian 16 oz Acrylic Travel Cup with Lid/Straw Double walled and insulated, it's the Looney Tunes Marvin the Martian 16 oz. Travel Cup with Straw! This green acrylic cup can be used for both hot and cold drinks. Each cup includes a twist-off lid and acrylic straw, too! This cup features Marvin the Martian looking rather stern with a green polka dot background. Hand wash only. Not dishwasher safe. Do not microwave.