Dougal Campbell

By default, the only way to see how a new theme looks on your site is to 
activate it, making it visible to everyone who visits. With this plugin, it 
is possible to view how a new theme looks without activating it.
<h3>TODO</h3>
Possible future enhancements:
<ul>
<li>Add an options screen.</li>
<li>Allow choice of theme to preview from a known list of installed themes.</li>
<li>Provide persistent previews by setting a cookie.</li>
<li>Restrict preview ability by user Roles/Capabilities.</li>
<li>Child-theme friendliness.</li>
</ul>
<h3>Notes</h3>
May not work properly with child themes. This is because it will not be able 
to inherit from the parent theme as it normally would.

Theme Preview

Allows you test how a theme looks on your site without activating it.

market360

Embed 360 product views created and downloaded from <a href="http://market360.co" rel="nofollow ugc">Market360.co</a> web application into your WordPress posts and pages. Thousands of 360 product packshots ready to use.
Market360 product viewer is a free WordPress plugin that can be used to effortlessly embed readymade rotary views of objects. Visit our site to see demo and download thousands 360 product views. 
Features: • Quick and easy integration 
• Access to thousands of readymade 360 product views. 
• HTML5 compatible – works on iPads, iPhones, Android devices and popular desktop browsers 
• 360 product view can be combined with additional photos and graphics – it is a complete product presentation 
• Variety of settings for playback to control rotation direction and speed, zoom level, fullscreen enable, etc. 
• Gradual, deep zoom and full screen option. 
• Technical support 
• Host 360 product views on your server – no addition fees
How to create 360 object view. 
Go to <a href="http://market360.co" rel="nofollow ugc">Market360.co</a> and use an easy online creator of 360 product view. Download your 360 presentation on local machine and use Market360 product viewer plugin to embed it into your WordPress posts or pages. 
You can use readymade 360 product views which are constantly updated in Market360.co

Market 360 Viewer

Market 360 viewer is a simplest way to put 360 products presentations on your Wordpress site.

Theme Preview vs Market 360 Viewer