The Ninja Reflector, which can be used either to keep room light and your reflection from appearing in a photo, or bounce a bit of extra light onto the front of the subject. They also have a full-body version.

Sadly, while it’s available at Amazon Japan, it’s flagged in the database as “can’t be shipped internationally”. The same thing happens to items like hand coffee grinders, which get treated as kitchen appliances.

On a side note, it was a real struggle to get out of Yodobashi Camera without a suitcase full of new gear. If the dollar had been where it was four years ago against the yen, I’d have been pulling out the reserve credit card…