this page is bucket for mouses that are no longer in production.
This one is beautiful! On Amazon, the product name has “Dark Fleur”. The word “fleur” means “flower” in French. Apparently, this is part of a series of Logitech's “Fantasy Collection”. There's a matching mouse.
Microsoft Natural 6000 Ergonomic Mouse
As of this one is no longer made. Replaced by Microsoft Sculpt Ergonomic Mouse 6000