KRISÚ

The Custom Share Button Plugin is a simple WordPress plugin that allows users to share posts via a custom share button.

Custom Share Button

A simple plugin that allows sharing posts via a custom share button.

d-media

Automatically add InShare buttons to your posts. It works for single pages and loops. 
The plugin features an options page in which the following can be configured:
Display options:
<ul>
<li>Toggle hiding of button in loops </li>
</ul>
Display style:
<ul>
<li>Show button on top or bottom of post</li>
<li>Choose button display style (counter top,counter right,default)</li>
<li>Add breaks before and/or after the button</li>
<li>Button preview</li>
<li>Custom styling option, adds a containing div with classname which you can style in your stylesheet (new since 1.1)</li>
</ul>
<h3>Arbitrary section</h3>

LinkedIn InShare button

Automatically add InShare buttons to your posts. It works for single pages and loops and is display options are customizable.

Custom Share Button vs LinkedIn InShare button