Cougars Unlimited, is the company that made Stan's unit. It is located in Albuquerque, New Mexico, owner Vic Yarberry. Vic had a Cougar with the sequential turn signals that developed a problem like Stan had with his '66 Tbird. So Vic decided to build a new unit to replace the old OEM system that had aged. The new unit worked well and in 1988 he went into business as Cougars Unlimited, LLC, and has been marketing these units ever since. He has expanded his line to include 1964-1971 Tbirds, 1967-1973 Cougars, and the 1969-1970 Shelby Mustang.
You will find his contact information in the Advertisements Forum under Cougars Unlimited.
Here is his catalog.