What is the rarest Tomy/Plarail/TrackMaster item you own?

My rarest items that I currently have is also my 1/360 Blushing Face Thomas, my whole BNIB Motor Road and Rail collection which I've gone to hard yarns to try and get them all. Also have a flip face Hiro which is pretty hard to come by, and of course my 4 Clear Annie's which were limited to only 3000. My BNIB Oliver although maybe not as rare as some other stuff I have is probably one of the things in my collection that is worth the most. I have A LOT of stuff currently sitting in Buyee Storage, which most of the things there are extremely rare. However I'm just waiting till normal air mail to Australia resumes before I send it. Can't wait to show everyone what I've gotten, will be amazing.