Butterick 6350; ©1978; Children's Tweety Bird Costume & Mask by Looney Tunes. Loose fitting costume: Jumpsuit has round neckline, back neckline slit, neckline binding extending into ties, elasticized lower edges, full length raglan sleeves and attached self tail. Instructions included for mask made of fake fur and felt. Topstitching. Also sold as Butterick 312.