Robots are cool, right? So a parametric model of a robot head where a user can adjust the size of various facial features must be super fly. The code allows for the adjustment of 5 attributes: antenna height, antenna ball radius, eye diameter, the spacing between the eyes, and the height of the mouth. I think that if animated, these attributes when manipulated programmatically, could resemble dialog, facial expressions, or even emotional states.Included is the OpenSCAD source code, where you can manipulate the the parameters at the top of the file to change how the robot head is rendered. There is no error checking for proper values, so watch out if you put in some crazy values.