Halloween is a popular holiday celebrated on October 31st. During this time, many people purchase items to celebrate the occasion. Common purchases include costumes, eggs, masks, and wigs. A COSTUME is an outfit worn for a special occasion, usually consisting of clothing, accessories, and makeup. Eggs are often used in Halloween decorations, such as carving them into jack-o-lanterns. Masks are worn to disguise one's identity or to create a certain look. Wigs are also used to change one's appearance, often to match a COSTUME. All of these items can be purchased to celebrate Halloween.