Zia Imtiaz

Easy-to-use solution to have a custom scrollbars compatible with desktop,laptop, tablet and phone devices.
Simple installation and activation, it works with NO modification of your code. 
Very stylish scrollbars, with no occupation on your window (original browser scrollbars need some of page space and reduces window/div usable width)
Facilities:
<ul>
<li>Easy to installation</li>
<li>Unlimited colors themes</li>
<li>Height & Width Customizable</li>
<li>Speed & AutoHide mode Customizable</li>
<li>Responsive for all devices</li>
<li>Custom control plugin</li>
<li>Supported of all mejor browsers</li>
<li>For all WordPress versions</li>
<li>And many more…</li>
</ul>
Plugin Features:
 <a href='http://web-settler.com/scrollbar-designer/' rel="nofollow ugc">Premium version</a> 
* Supports full features.
<ul>
<li>On/Off switch.</li>
<li>Auto Hide Scrollbar</li>
<li>Scrollbar Cursor Color.</li>
<li>Scrollbar Cursor Width.</li>
<li>Scrollbar Cursor Boarder Width.</li>
<li>Scrollbar Cursor Boarder Style.</li>
<li>Scrollbar Cursor Boarder Color.</li>
<li>Scrollbar Cursor Boarder Radius.</li>
<li>Rail Color With Opacity.</li>
<li>Scrollbar Rail Position.</li>
<li>Scrollbar Opacity When Active.</li>
<li>Mouse Scroll Step..</li>
<li>Smoth Scroll.</li>
<li>Mouse Whele Scroll.</li>
</ul>
Fully integrated with jQuery 
Compatibile with jQuery UI, jQuery Touch, jQuery Mobile

Scrollbar Designer

Get rid of boring scrollbar and make your own Custom Scrollbar for your website.

Touhidul Sadeek

<h4>Plugin Features</h4>
<ul>
<li>Unlimited Color Themes</li>
<li>Custom Cursor Color</li>
<li>Custom Rail/Strip Color</li>
<li>Touch Support</li>
<li>Strip Sensitivity Support</li>
<li>Cursor Border Color Support</li>
<li>Cursor Border Radius Support</li>
<li>Cursor Border Type Support</li>
<li>Plug and Play Functionality Enabled</li>
<li>Works in Every Device and WP Version</li>
<li>And Many More…</li>
</ul>
<a href="http://demos.tcoderbd.com/wordpress_plugins/" rel="nofollow ugc">demo</a>

TCBD Custom Scrollbar

TCBD Custom Scrollbar - WordPress is a jQuery custom scrollbar for your wordpress website. This plugin will enable awesome custom scrollbar.

Scrollbar Designer vs TCBD Custom Scrollbar