Discovered via the San Francisco Chronicle, it’s an awesome contrast between the fragile glasses and the rusty metal of the rake.
At the same time, you could say that the rake evokes the agricultural process from which the grapes in the wine were born.
I am a tad concerned that it could be easy to snap the stems on the glasses if they are not placed or removed carefully, but it seems pretty clear to me that this design is knowingly more about form than function.