Universal USB Installer aka UUI is a Live Linux USB Creator that allows you to choose from a selection of Linux Distributions to put on your USB Flash Drive. The UniversalUSB Installer is easy to use. Simply choose a Live Linux Distribution, the ISO file, your Flash Drive and, Click Install. Upon completion, you should have a ready to run bootable USB Flash Drive with your select operating system installed.
This tiny tool is very useful when installing Ubuntu through a USB stick.