Jason Coleman

The idea for this plugin came from a presentation at WordCamp Philly 
2011.
Code from these other plugins has served as reference and inspiration, and was sometimes borrowed from:
https://wordpress.org/extend/plugins/disable-visual-editor-wysiwyg/ 
https://wordpress.org/extend/plugins/raw-html/
Plans:
<ul>
<li>Hide the disable option from non-admins.</li>
<li>Possibly remove certain filters from the the_content filter, similar to the Raw HTML or Preserved HTML Editor Markup plugins.</li>
</ul>

Don't Break The Code

Allows admins to disable the Visual editor tab on a per post basis.

cyberduck

Looking for a fast and easy way to add custom buttons to the WordPress Visual Editor? Look no further. With this plugin you can easily add your own custom buttons in the Visual Editor, as well as the HTML Editor. You can then add HTML code to the button, either as a wrap (before, after) or as a single block. On top of that you can, from within the plugin, set the CSS so you can view the effect of the button directly in the Visual Editor.
The plugin comes with a large number of ready to use button icons, but you can also add your own.
Visual Editor Custom Buttons. The perfect plugin for customizing the Visual Editor, add special features and simplify the content update process for the novice user.

Visual Editor Custom Buttons

This just works, simple and elegant. Create an editor toolbar button and define what it should insert in html.

Excellent tool for customizations in the editor

Visual Editor Custom Buttons lets you add custom buttons to the Wordpress Visual Editor.

Don't Break The Code vs Visual Editor Custom Buttons