Mockies is a project mainly written in ..., it's free.
A collection of common HTML / CSS snippets and elements for rapid prototyping and development
Mockies is a collection of HTML / CSS snippets and mockups for rapid prototyping and development. It contains many common elements and patterns that you can use when building your web interface from scratch.
Check them out here.
git clone git://github.com/chetan51/mockies.git
sudo gem install annyong
cd mockies
annyong