Shape.CanvasItems (Word)
Returns a CanvasShapes object that represents a collection of shapes in a drawing canvas.
Sub NewCanvasShape()
Dim shpCanvas As Shape
Set shpCanvas = ActiveDocument.Shapes.AddCanvas( _
Left:=100, Top:=75, Width:=150, Height:=200)
shpCanvas.CanvasItems.AddShape _
Type:=msoShapeOval, Top:=25, _
Left:=25, Width:=150, Height:=150
End Sub