The bicycle holster scene is getting crazy on etsy these day. While I am unsure how safe it is to carry a bottle of wine in this manner on your top tube, someone clearly thinks it is cool. “The rack secures tightly to the frame so that the two parts do not separate. I’ve tried it with a bunch of different bottles and it’s nicely flexible.” It fits a 1inch TT. Measure twice.
More looks after the click.