I hope they give away transparent Dr. Yellow carriages in the future expos. the organizers think people are going to its Expos to see its upcoming products rather than getting the Expo exclusive rolling stocks.
My Trackmaster/Tomy/Plarail Photo Gallery Page (over 600+ photos and still under construction)
https://www.flickr.com/photos/183311600@N03/
https://www.flickr.com/photos/183311600@N03/