Set number of this brick-built 2015 Canned Fish Toy commercial Award LEGO Duck
I looked into this, and it would seem that this is not a numbered model. According to an attendee of the event (who works for LEGO,) there aren't numbers for a lot of promotional sets, likely including this model. I have also searched Bricklink for this. It makes sense that this isn't a numbered set because it was for a seminar.