<Canvas
  xmlns="http://schemas.microsoft.com/client/2007"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Width="400" Height="400">
  <Rectangle Width="63" Height="76" Canvas.Top="10" Canvas.Left="10">
    <Rectangle.Fill>
     <ImageBrush ImageSource="mono.png" >
       <ImageBrush.RelativeTransform>
	 <MatrixTransform>
	   <MatrixTransform.Matrix>
	     <Matrix x:Name="Rotation" M11="1" M12="0" M21="0" M22="0" OffsetX="0" OffsetY="0" />
	   </MatrixTransform.Matrix>
         </MatrixTransform>
       </ImageBrush.RelativeTransform>
     </ImageBrush>
   </Rectangle.Fill>
   <Rectangle.Triggers>
     <TriggerCollection>
        <EventTrigger RoutedEvent="Rectangle.Loaded">
           <BeginStoryboard>
             <Storyboard>
		<DoubleAnimation Storyboard.TargetName="Rotation" Storyboard.TargetProperty="M12" From="0" To="3.1415926535" Duration="00:00:35" />
		<DoubleAnimation Storyboard.TargetName="Rotation" Storyboard.TargetProperty="M21" From="0" To="3.1415926535" Duration="00:00:35" />
	      </Storyboard>
	    </BeginStoryboard>
	</EventTrigger>
      </TriggerCollection>
    </Rectangle.Triggers>
  </Rectangle>
</Canvas>
