Shane Jones

This Pinterest plugin will enable your sites visitors to pin individual images on Pinterest, the pin button will appear just underneath every image in the main content.
It gives you the option to chose from the 3 versions of pinterest buttons to apply to your post images.
It also has the option to add a Pinterest follow button to the bottom of your posts.
More features and a major bug fixing release coming in version 1.0

Pinterest Image Pin

Adds Pinterest button to individual images for one by one image pinning. Enjoy

Aeryn

Extending the image attributes to include nopin=”nopin” within the <img /> tag. The nopin attribute blocks the specified image from being pinned when using the “Pin It” button.
An example would look like: <img src=”yourimage.jpg” nopin=”nopin” />
This plugin does not automatically add the nopin attribute to every image within your blog; it merely allows you to add it to your images without fear of WordPress removing the tag when your post is published.
PLEASE NOTE: This plugin overides current image tag attributes, thus if you use any other attributes other than the ones listed below, they will be removed from your image tags automatically once this plugin is activated.
Available attributes:
<ul>
<li>src</li>
<li>alt</li>
<li>title</li>
<li>class</li>
<li>id</li>
<li>style</li>
<li>align</li>
<li>border</li>
<li>crossorigin</li>
<li>height</li>
<li>hspace</li>
<li>ismap</li>
<li>longdesc</li>
<li>usemap</li>
<li>vspace</li>
<li>width</li>
<li>onmouseover</li>
<li>onmouseout</li>
<li>name</li>
<li>aria-describedby</li>
</ul>

Pinterest Repellent

Extend image attributes to disable pinterest "pinning" by utilizing nopin="nopin" within html img tag.

Pinterest Image Pin vs Pinterest Repellent