Obon in Japan -Okuribi-
15th of August in Japan is the last day of Obon (お盆) as well as the memorial day of the end of the WWII. Still many families burn Okuribi (送り火) to send the soul of the ancestors back to their world. My grandma does it too. Usually Mukaebi (迎え火) is burnt on the 13th of August to receive the ancestors. It´s said that the smoke is the sign for the souls to reach their home correctly. Then during three days of Obon, your loved ones spend time with you in our world.
What they burn is Ogara (おがら), split firewood made of pine tree. People used to use straws but now they are becoming more expensive and this pine sticks are sold commonly in the supermarkets.
This is Okuribi, my grandma did this year. It was quite a windy day but they managed. Good by grandpa, see you next year!