Ralph Marlin is a tie company which specializes in novelty ties. Around 1991-1994, they were sought out by Paramount Pictures to make a series of ties with Star Trek themes (link to Star Trek necktie below). The ties were of Original Series and Star Trek: The Next Generation characters. Ralph Marlin also made ties for the Star Wars series of movies.
This Pink Floyd ~ The Dark Side of the Moon necktie is for sale on Amazon.