This model can be used to build a LED matrix cube. It uses WLED as firmware and a WLED controller. The panels are glued with double sided tape to the "adapter". 

The cube has 5 sides with LEDs and a solid base. The image is from the prototype because one LED panel was defect. :(

LED Matrix: https://de.aliexpress.com/item/1005004968910031.html

WLED firmware: https://kno.wled.ge

WLED controller: https://github.com/Hasenpups/WLED_All-in-one_Controller