Simple Contact Form 1 & 2
Very simple form with options for Name, Email, Phone, Subject, Terms & Conditions, and Message.
Default fields can be shown or hidden, but no additional fields can be added.
Contact form 1
Contact form 2
Gravity Forms - 5 & 6
Styling modules for Gravity forms.
After the custom form is created in Gravity, these modules allow you to customize their colors, background, typography and button styles.