I printed the Sylvie sword, currently found here: https://www.thingiverse.com/thing:4906053 and wanted a minimal stand to display it. I found the “Curvy Katana Stand” here: https://www.thingiverse.com/thing:4558502 and remixed it for the Sylvie sword. Eventually I'll get around to adding a pad around the edges where the sword sits, but that hasn't been a priority.
The author hasn't provided the model origin yet.