actually 20x20x20 rounded cube —

Founded actually 20x20x20 rounded cube models & stl files for printing
Blender  Default Cube
Daniel Dück
JP Calibration Cube
Madhurifan
Dancing cubes
JustinSDK
3x3 Puzzle Cube
beckham__y
Rubix Cube 1x1x1
Freddy Dev
Suspended cube
caspar.miller
Puzzle cube
DyingGoose
Test Cubes
Lopatka