azurecurve

Easily add an icon to a post or page using the [icon] shortcode.
For example, to display the note icon, shortcode usage is [icon=note]; 1,000 icons from the famfamfam Silk collection are included.
Defintion of icons can be found at famfamfam.com: http://www.famfamfam.com/lab/icons/silk/; a settings page also shows all available icons.

azurecurve Icons

Allows a 16x16 icon to be displayed in a post or page using a shortcode.

Leandro G?mez

This plugin will enable you to use the open source <a href="http://emojione.com/" rel="nofollow ugc">Emoji One</a> emoticons in your posts and pages. There are over 1100 emoticons for you to use.
Based on the <a href="https://wordpress.org/plugins/typepad-emoji-for-tinymce/" rel="ugc">TypePad emoji for TinyMCE</a> plugin by <a href="https://profiles.wordpress.org/picmo/" rel="nofollow ugc">picmo</a>. Emoji set designed and offered free by <a href="http://emojione.com/" rel="nofollow ugc">Emoji One</a>.

WP Emoji One

Add Emoji One emoticons to your posts and pages.

azurecurve Icons vs WP Emoji One