These pictures are one of the old thing of summer in Japan called Tsurishinobu - a kind of a hanging plant with a bell. These plants are ferns on the old branch or rock.
Gardeners used to present for the owners of gardens in those days.
Tsurishinobu are enjoyed to be hanged by the entrance and windows at the house. And it has a bell sounds like as a windbell. The bell is also a charm .Feels good and cool.
They didnt have any air-conditioners just seeing and hearing, but feel cool.
This is the one of Japanese Wabi-Sabi.