def METHOD_NAME(node, *args, **kargs):
    """ This is my item generator. It must receive a node object, and
    returns a Qt4 graphics item that can be used as a node face.
    """
    # receive an arbitrary number of arguments, in this case width and
    # height of the faces
    width = args[0]
    height = args[1]
    ## Creates a main master Item that will contain all other elements
    ## Items can be standard QGraphicsItem
    # masterItem = QGraphicsRectItem(0, 0, width, height)
    # Or your custom Items, in which you can re-implement interactive
    # functions, etc. Check QGraphicsItem doc for details.
    masterItem = InteractiveItem(0, 0, width, height)
    masterItem.setAcceptHoverEvents(True)
    # Keep a link within the item to access node info
    masterItem.node = node
    # I dont want a border around the masterItem
    masterItem.setPen(QPen(QtCore.Qt.NoPen))
    # Add ellipse around text
    ellipse = QGraphicsEllipseItem(masterItem.rect())
    ellipse.setParentItem(masterItem)
    # Change ellipse color
    ellipse.setBrush(QBrush(QColor( random_color())))
    # Add node name within the ellipse
    text = QGraphicsSimpleTextItem(node.name)
    text.setParentItem(ellipse)
    text.setPen(QPen(QPen(QColor("white"))))
    # Center text according to masterItem size
    tw = text.boundingRect().width()
    th = text.boundingRect().height()
    center = masterItem.boundingRect().center()
    text.setPos(center.x()-tw/2, center.y()-th/2)
    return masterItem