<style type="text/css">
    .ui-stack {
        z-index: 1000;
    }
</style>

Stack is displayed at bottom right corner of the page. Clicking the basket icon toggles the items.

<p:stack icon="/resources/demo/images/dock/stack.png" expanded="true">
    <p:menuitem value="Home" icon="/resources/demo/images/dock/home.png" url="#"/>
    <p:menuitem value="Music" icon="/resources/demo/images/dock/music.png" url="#"/>
    <p:menuitem value="Video" icon="/resources/demo/images/dock/video.png" url="#"/>
    <p:menuitem value="Email" icon="/resources/demo/images/dock/email.png" url="#"/>
    <p:menuitem value="Portfolio" icon="/resources/demo/images/dock/portfolio.png" url="#"/>
</p:stack>