private void OnInitialized(object sender, EventArgs args)
{
    var but = FindName("Buttony");
    UnityEngine.Debug.Log("but: " + but.ToString());
}

<ItemsControl ItemsSource="{Binding Blah}">
    <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <WrapPanel />
        </ItemsPanelTemplate>
    </ItemsControl.ItemsPanel>
    <ItemsControl.ItemTemplate>
        <DataTemplate>
            <myNamespace:ControlName />
        </DataTemplate>
    </ItemsControl.ItemTemplate>
</ItemsControl>