Smarter Themes

pi Scrollbar wp is fully customizable wordpress scrollbar plugin.You can change scrollbar color, border radius, scroll speed, width, border style & other settings using plugin option page.
 Plugin Features
<ul>
<li>Simple installation & activation</li>
<li>Unlimited colors.</li>
<li>CSS3 animation.</li>
<li>Supported touch devices.</li>
<li>All browser supported</li>
<li>Custom Width.</li>
<li>Scrollbar border radius.</li>
<li>Scrollbar scroll speed.</li>
<li>Scrollbar border.</li>
<li>Auto Hide Enable/Disable Mode.</li>
<li>Lightweight Responsive.</li>
<li>Easy Option Panel.</li>
<li>Easy Documentation.</li>
</ul>

Scrollbar

Customize your browser scrollbars with unlimited styling and color using scrollbar wp plugin.

masumabdullah

<h3>Winsome nice scrollbar by http://abdullahmasum.elance.com/</h3>
This plugin will add a nice custom scrollbar. No shortcode needed and very lightweight.
Plugin Features
<ul>
<li>Unlimited color</li>
<li>Strong admin panel for customizing</li>
<li>Border and brder-radius supports </li>
<li>Mobile touch option. </li>
<li>Very Lightweight.</li>
<li>Controlling scroll speed 
& many More</li>
</ul>
Live Preview: http://www.mhost.5gbfree.com/demo

Winsome Nice Scrollbar

Great plugin

This plugin will add a nice custom scrollbar. You can controll scrollbar settings from admin nice scrollbar admin panel.

Scrollbar vs Winsome Nice Scrollbar