Paint 3D

You might want to take a look at a very nice 3D editor called Paint3D. You can create 3D images (and 3D pixel art) the same way as in ordinary Paint - how cool is that?

Qubicle

After long break (loads of work to do) I'm coming back to some regular (hopefully) posting here.

Qubicle is a Windows based software for creating 3D Pixel Art models. From what I've seen on minddesk.com site - it's looking good (waiting for Mac version to play with). The author of the tool - Tim Wesoly - has created a lot of wonderful stuff with it and he's showcasing that on his blog. Really worth checking out!. More info on www.minddesk.com