Vex controllers for $12.95 (CAD) at the Princess Auto store in Barrie, ON.
I called their national sales office, and the Whitby store, and nobody knew about it, and I'm not about to visit Barrie (100 km north of Toronto) to check on it. It's probably from a liquidation of InterTAN (i.e. RadioShack Canada), which was located in Barrie, and was handled through that store's surplus department.