Attached above is a simple smart prop hair band that can be used with the TieBack morph in the Flo Hair AP. I place it in the public domain, anyone can feel free to include it in any distribution, modify it, or otherwise do what you like with it.

You will have to remove the ".TXT" file extension, before you use the zip. The zip is NOT an automatic install, you will have to extract it to the folder where you want the files. There is no obj file, as the hair band uses internal geometry.

The problem with such a smart prop is that although it will fit correctly whilst Antonia is in the default pose, when her head or neck is rotated, the band will move out of position and will need manual adjustment. This is a common problem with smart props when they are placed on a part that bends. Neither will "Inherit bends of parent" be much help here, as  the Flow Hair AP makes extensive use of JCM. One could in theory make JCM for the smart prop, but I don't think I have the time or patience to do that at the moment.

The hair band is pretty basic, just a plain band, perhaps someone else can come up with something better, a nice bow or something.

And then there is also a hair band that is included with the Victoria version of the Flo Hair. Whilst I doubt it would load in the correct position, it should be usable.