gregbialowas

A simple form that could be displayed on the sidebars or any part of footer area. It consists of the usual three input fields: name, email and the message. Emails are automatically sent to the WP Admin address. 
If you want to, you can also add the form to any post or page by using a shortcode: [gbsimple_contact_us_widget style=”color_filter”]. 
Available color filters: red, green, blue, white or black.
!Important: In order to use it a a regular widget your theme must be supporting sidebar/footer area. 
There are no restrictions to use it a shortcode on any page/post.
<h3>Donations</h3>
http://gregbialowas.com/donate

Simple Contact Us Form Widget

Simple contact form (name, email, message) to be added to sidebars or footer area (as a widget), and/or any post or page (as a shortcode).

Sana Azmeh

A lightweight contact us form with a floating icon on all pages at the bottom left or bottom right. Just activate the plugin and set colors of the icon in settings and recipient email address and it is ready to use.
You can either use default form or use your own form by saving shortcode in Form Shortcode field in Contact Us for WP settings.

Contact Us for WP

A button to reach us anywhere. Contact us form with floating icon on all pages.

Simple Contact Us Form Widget vs Contact Us for WP