The Global Watersheds web app has a nice feature that it seems only a few people have discovered. You can create a permalink to an interactive map of your watershed (or flowpath). Then you can embed the map on a web page, send it to a friend, or post it on your favorite social media site. Just look for these buttons at the bottom left after you have created a new watershed:
Since the app was launched in October 2022, users have created 770 shared watersheds. Here is a map and a table showing all of them. In that same time, users have made over 237,000 watersheds and over 36,000 flow paths.