The Johnny Seven OMA Goren picks up in the toy store is a real toy produced in the early 1960s. The "One Man Army" multi-function toy gun was advertised heavily on children's television but Bob Keeshan would not allow the toy's commercials on Captain Kangaroo.
Goren mentions that the vampire club members are avid fans of the books and pictures of Carlotta Francis. It has been suggested that this character is based on Victoria Francés, a well-recognized Spanish artist of the gothic and the vampire worlds. However, that seems unlikely, as Francés had only started publishing shortly before this episode was made.
The magnifying glass Goren uses to examine the mark on the victim's arm is from a boxed 2-volume set of "The Compact Edition Of The Oxford English Dictionary."