There oughta be an LED cube.
5x5x5 LED Cube
3D LED CUBE 3x3x3 - Whadda
Crowdfunding Watch: A playful LED cube for the Raspberry Pi
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Led Cube
Arduino - LED Cube 3x3x3
Light Up LED Cube 20cm, Cordless RGB Table Lamp with Remote – PK Green USA
GitHub - itsharryle/LED_CUBE: 8x8x8 LED cube powered by an arduino
There oughta be an LED cube.
Cube LED table lamp – Zevessa