XBlender is based on Blender (Popular Open Source 3D Creation Software) but contains a wrapper to allow a user to run it directly from a portable USB device. With this Portable XBlender, you can model, shade, render and create all kinds of 3D graphics and effects. Best of all, XBlender is Free Open Source 3D Creation Software that can be stored on a portable USB device.
XBlender Portable 3D Creation Screenshot:
Authors Website: winpenpack.com/main/download.php?view.41
License: Open Source
Download: You can download it from HERE
Note: The Official Blender site does offer a Portable Blender zip. You can download the Portable Blender HERE