I just looked through Yahoo auction Japan but (particularly with my VERY limited Japanese) couldn't find your squeezer, just lots of different kinds of pineapple slicers and corers.

Am pretty sure it will turn up eventually, so if you are persistent you can periodically go to the noppin.com auction deputy site (which is effectively a Yahoo Auctions portal), use pineapple or パイナップル as a search term, select home/interior as a category and this will then give you access to the Kitchen/tableware category.

I've been using Noppin off and on for years and have found them to be reliable.