Scary Costumes for Boys -- We carry a large selection of boys Scary costumes, perfect for fiendish and frightening costume parties. Scare your friends dressed in Grim Reaper costumes, Ghost costumes, Vampire costumes, scary Mummy costumes, Zombie costumes and much more, in sizes especially for boys. Howl at the moon in a boys Werewolf costume, or spread terror in a creepy evil Clown costume. Great for Halloween celebrations, haunted houses, and year round pranks on friends and family. Boo!