DIY 3D LED Cube With a Raspberry Pi : 6 Steps (with Pictures) - Instructables
VoxCube – 8x8x8 RGB LED Cube for the Raspberry Pi - Raspberry Pi Forums
Amazon.com: Treedix WS2812B 5050 RGB LED Light Board Led Cube Light DIY Kit Squared LED Digital Individually Addressable 5X5X5 for Children and Teenagers Learning Compatible with Arduino and Raspberry Pi : Electronics
VoxCube – 8x8x8 RGB LED Cube for the Raspberry Pi - Raspberry Pi Forums
jolliCube – 8x8x8 LED Cube (SPI) DIY Kit from jolliFactory on Tindie