Manikin

Manikin is a simple Java-based body simulation application that helps you draw a 3D human-looking mannequin with full limb movement.

Simple controls

The user has a set of simple controls to design the mannequin. Besides the basic information given on the right side of the screen where different aspects of the mannequin are displayed, like the back angle, rotation angle, and so on, users can change the alpha percentage as well.
With the aid of the lower buttons users can reset all the mannequin's positions, have the model draw again, and tweak a few other commands. Except that, there is nothing else available for further adjustments.

Limited features

There are no extra features this program performs except having a 3D model modified, turned, and zoomed in. There are some extra customization options, like setting the background color and 'manikin' color, and that's about it.
Although useful for some basic modeling purposes, the application doesn't specify what sort of file formats it uses to export projects. Every time a user attempts to save a format or a mesh, he/she is given only the 'all files' option. Additionally, the model itself is poorly drawn and looks pretty shabby even for a simple template human representation.

Conclusion

There isn't much to say about Manikin, except that it can offer a fairly basic level of human physiological exploration. You can grab the given body by the arms and legs, and see it stand in funny positions, while the graphical user interface will give you some numbers about angles, light angles, and so on. You can change the alpha percentage and the skin color.
Overall, this isn't probably the greatest companion when it comes to comparing it to other more advanced 3D modelers out there, since it doesn't support advanced 3DS Max file formats or anything else from Autodesk.