alexhal

The Shop Ajax tags dropdown allows customers to sort products based on tags instead of variations. For example: 
Show all products with tag “Tshirt” or show all products with tag “Jumper” and “Jersey”.
This plugin still needs some development, but if you just need a basic AJAX tag widget it will do. 
We hope to release and updated version in a couple of weeks which works better.
This plugin is compatible with WordPress 4.0 and WooCommerce 2.2.0-bleeding.

Shop Ajax Tags Dropdown

This plugin adds an AJAX tag Dropdown widget to your WooCommerce shop.

Philipp Speck

With this plugin you can edit sidebar contents like posts in the admin area and assign them from a dropdown menu to any post or page. It supports flexible dropping via widget for independent theme association.
It’s a matter of fact that people don’t want to code when they just want to change their contents. To keep a website interesting for visitors you can change the sidebar contents in context to the main content. Before you could realize it with different sidebar templates or conditional tags. 
Now you can do all these great things inside the admin area without any coding. 
Any anyway: Since we organize informations in databases all contents should be stored there as well.
From a dropdown menu you can easily choose all sidebars you have created.
<h4>Features</h4>
<ul>
<li>Own <code>meta box</code> on post/page edit pages</li>
<li>Own menu item in admin menu</li>
<li>Registrates own <code>post type</code> for sidebars</li>
<li>Full editable sidebars like posts</li>
<li>Assign sidebars from dropdown menu</li>
<li>Flexible widget support</li>
<li>No coding needed</li>
<li>Oldest sidebar as default post</li>
<li>Loads sidebar from parent page if not assigned for children</li>
<li>Localization in English and German</li>
</ul>
<h4>Related Links</h4>
<ul>
<li><a href="http://www.typomedia.org/wordpress/plugins/wordpress-custom-sidebar/" title="Homepage of WordPress Custom Sidebar" rel="nofollow ugc">Homepage</a></li>
<li><a href="https://wordpress.org/extend/plugins/wordpress-custom-sidebar/changelog/" title="Changelog for WordPress Custom Sidebar" rel="ugc">Changelog</a></li>
<li><a href="https://wordpress.org/extend/plugins/wordpress-custom-sidebar/faq/" title="FAQ for WordPress Custom Sidebar" rel="ugc">Questions</a></li>
</ul>
Note: 
First drop the widget in the sidebar of your choice. Now uses oldest sidebar as default sidebar. Before installing or upgrading new plugins, please backup your database first! After upgrading to ‘WordPress Custom Sidebar 2.0’ you have to assign the widget again.

WordPress Custom Sidebar

With this plugin you can handle sidebar contents like posts and assign them from a dropdown menu.

Shop Ajax Tags Dropdown vs WordPress Custom Sidebar