In Okinawa, Bon Festival is held in the lunar calendar, so this year's Bon Festival is three days from 8/10 to 8/12. The first day of Obon is called "Unke", the second day is called "Nakanuhi", and the third day is called "Wokui", and today is Unke Day.
The altar decoration of the "Old Uezato Family" in Okinawa World Ryukyu Kingdom Castle Town is also a tray specification. You can go up and relax at the former Uezato family, so please take a look at this opportunity.
The offering of Obon in Okinawa is like this. (There are some differences depending on the region and the times.) Sugar cane is called Gousanouge and is used as a cane of your ancestors. It seems that there are places where you can offer spirit horses made by Basho. On the mainland, they are made with eggplants and cucumbers.
On Unke's Day, we welcome your ancestors with incense sticks in front of the house.
During the Bon Festival, the altar is served with a table every three meals.
Usanmi (9 side dishes such as shami, kelp and kamaboko) and rice cakes in the photo will be served for dinner on the last Ukui day.
On the night of Wukui's day, he burns the money of Guso (the afterlife) and sends his ancestors to the world. The custom of burning this mold was introduced from China, and it seems that there are similar customs in Taiwan and Korea.
The old Uezato family also has reading materials that explain how to worship them in detail, so you can do it while reading them.
I hope that your ancestors will come back safely.