UPDATE: this post is out of date. Please look elsewhere on installing the Snow plugin
Create a compiz subdirectory in your home folder
mkdir ~/compiz
Install the packages required for compiling compiz plugins
sudo apt-get install compiz-bcop compiz-dev build-essential libxcomposite-dev libpng12-dev libsm-dev libxrandr-dev libxdamage-dev libxinerama-dev libstartup-notification0-dev libgconf2-dev librsvg2-dev libdbus-1-dev libdbus-glib-1-dev libgnome-desktop-dev x11proto-scrnsaver-dev libxss-dev libxslt1-dev libtool
Download Snow
wget -O ~/compiz/snow.tar.gz 'http://gitweb.opencompositing.org/?p=fusion/plugins/snow;
a=snapshot;h=01d0ff6ec71dae4699bc990e0114569c8ad4e083'
Extract , make , and install
cd ~/compiz/
tar -xvzf snow.tar.gz
cd snow
make
make install
Restart XOrg (logout/login).
Source:13 Compiz plugins for Ubuntu Gutsy
