Kenneth Strickfaden created and maintained the laboratory equipment. Strickfaden recycled a number of the fancifully named machines he had created for the original "Frankenstein" for use in "Bride", including the "Cosmic Ray Diffuser", and the "Nebularium". A lightning bolt generated by Strickfaden's equipment has become a stock scene, appearing in any number of films and television shows. The man behind the film's special photographic effects was John P. Fulton, head of the special effects department at Universal Studios at the time. Fulton and David S. Horsely created the homunculi over the course of two days by shooting the actors in full-size jars against black velvet and aligning them with the perspective of the on-set jars. The foreground film plate was rotoscoped and matted onto the rear plate. Diminutive actor Billy Barty is briefly visible from the back in the finished film as a homunculus infant in a high chair, but Whale cut the infant's reveal before the film's release.