DJ-EasyContact free contact form for Joomla was just updated. New version brings new Popup theme called Style 5.
It gives you the possibility to display a nice looking icon in the right bottom corner.  The clicked icon opens the popup window with contact form to write a message.
 
Learn more about the latest DJ-EasyContact update here.
You will also find there a useful tutorial that explains how to enable Style-5 (Popup) theme in DJ-EasyContact.