This one is 60 cm
This one is 30 cm
I managed to find a picture of the 30 cm one when I did a search, but it gave no information. Also I think earlier in the year, Thailand had some Pikachu promotion where there were Pikachu costumes dressed like this plush.
As a note, these auctions are already over.
I FOUND something. It looks like there was an event in Thailand.
This picture was on the Pokemon Together facebook, I scrolled through most of the pictures, found one with a girl, then this one.
Now that I know it is probably official.... was it made just for the event?? I don't see information about buying one.
Here are more photos