BirthdayExpress Super Mario Bros Party Supplies Wall Decals If you can't find a pipe to bring your kid and their friends to the Mushroom Kingdom, just turn your house into this mystical video game land for their birthday with the Super Mario Bros Wall Decals. Squeegee for installation and care included. Decals made of vinyl varying in size and are for use on smooth, flat surfaces. Add matching tableware, favors, accessories, or a party kit bundle to complete your Mario Brothers birthday party.