<ItemsControl Name="ItemsControl1">
    <ItemsControl.ItemTemplate>
        <DataTemplate>
                <Canvas Margin="10,10,10,10" Background="CornflowerBlue" >

                    <Rectangle Fill="Blue" Stroke="Blue" Width="350" Height="100">

                    </Rectangle>
                    <TextBlock Text="{Binding Headline}" Canvas.Left="25" Canvas.Top="10" />
                    <TextBlock Text="{Binding MyDate}" Canvas.Left="55" Canvas.Top="40"/>
                    <Button Content="Click me" Click="Button_Click" Width="80" Height="25" Canvas.Left="200" Canvas.Top="20" />
                </Canvas>
        </DataTemplate>
    </ItemsControl.ItemTemplate>
</ItemsControl>

<Canvas Width="300" Height="100" ...>

<ItemsControl ItemsSource="{Binding FeedItems}">
    <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <StackPanel Orientation="Vertical" />
        </ItemsPanelTemplate>
    </ItemsControl.ItemsPanel>
    <ItemsControl.ItemTemplate>
        <DataTemplate>
            ... etc ...
        </DataTemplate>
    </ItemsControl.ItemTemplate>
</ItemsControl>