Horne Costume Company

The Horne Costume Company is a business that makes Halloween costumes.

Scooby-Doo (DC Comics)
Velma, Shaggy Rogers, and Scooby-Doo looked carefully at the labels on the costumes of villains they had fought, and found that many were made by the same company, which they decided to investigate. They discovered the owner, Harriet Horne, had no idea that her costumes were being mail-ordered to be used by criminals. (Costume Caper)

Appearances

 * Scooby-Doo (DC Comics)
 * Costume Caper