https://learnjapanese123.com/crazy-vending-machines-japan/
10. Underwear Vending Machines
And of course, this vending machine selling panties is going to be on the list. It is a common misconception that the underwear vending machines in Tokyo sell used underwear – but this isn’t true. They did exist in the back alleys of Akihabara, about 10 or 15 years ago, but the law is strict now. Some shops around here sold used panties – not necessarily in vending machines – but the police cracked down on them. Today, the underwear-selling vending machines are more of a gag gift than a strange fetish. And, for just 1000 yen, you can get your very own!
Just sayin', not a bad price...