Oh, they can still be found --- on the internet...
![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
( amazon, ebay, newegg, etc. )
Here is a site you can check out:
www.floppydisk.com
I have no idea about their reputation.
I am not sure whether or not they sell new disks.
However, they do perform data recovery.