This is technically not a feature request, this more like a submission of content.
If this submission appears multiple times, I am sorry. The tracker system initally did not work for me. Ignore the later entries then.
AFAIK Cubosphere lacks icons. And I hate it to see the default icon on my desktop. Therefore I have created some icons for Cubosphere. It is a sphere on a cube for the big icons, for small icons it is simply a ball. Cube and ball are far-east themed. And I think they look pretty nice. :-)
Included sizes: 16×16 (ball only), 24×24 (ball only), 32×32, 48×48, 64×64, 72×72, 96×96, 128×128, 256×256 pixels. All files are PNGs, therefore suitable for XDG-compliant desktops (read: KDE, GNOME, awesome, and practically most other desktops for GNU/Linux).
The icons files were created with GIMP and the G'MIC plug-in (for the 3D models) and the drop shadow tool of GIMP (for the shadow effect) for the big icons.
I would have uploaded the XCF (GIMP native file format) files to play around with, too. But sadly the archive woulhd have been larger than 256 KiB then, which is above the allowed file size on this tracker.