A launcher icon that uses a layer-list

ic_launcher_overlaid.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

    <item>
        <!-- Your original launcher icon -->
        <bitmap android:src="@mipmap/ic_launcher" />
    </item>
    <item
        android:left="100dp"
        android:top="100dp">
        <bitmap android:src="@drawable/launcher_overlay" />
    </item>

</layer-list>