Instead of using the toolbar, why not just put some buttons in a stackpanel? (that's essentially what a toolbar is). That way you get full control, and you are not locked into a toolbar.
It would be very helpful if you or someone post a sample on how to implement this?
<StackPanel Orientation="Horizontal" VerticalAlignment="Top" HorizontalAlignment="Center" Margin="10" Background="White"> <Button Click="Tool1_Click" Content="Tool1" /> <Button Click="Tool2_Click" Content="Tool2" /> <Button Click="Tool3_Click" Content="Tool3" /> </StackPanel>