thatposhgirl

This is a simple plugin that prepends any category names to the front of the 
title when viewed from the front page. It does this in the form:
[Category Name] Post Title
The current version prepends any categories that are associated with the post.

Category Title Prefix

Prepends the category name to the post title when viewed on the front page.

Vidya L

This is a simple plugin comes with a set of icons to display icons along with posts/pages title. You can change color/size of the icon. Easy to customize.

WP Page Title With Icon

A simple plugin to display icons along with posts/pages title.

Category Title Prefix vs WP Page Title With Icon