Cubic - Cubic (Custom Ubuntu ISO Creator) is a GUI wizard to create a customized bootable Ubuntu Live CD...
Distroshare Ubuntu Imager - Remaster your Ubuntu install!
YaST - YaST is the installation and configuration tool for https://alternativeto.
Linux Live Kit - Linux Live Kit the ultimate way to bring your linux to life. Create your own live distribution
mklivecd - LiveCD provides that platform for creating your own LiveCD based on Mandrake Linux.
penguins-eggs - penguins-eggs is a console utility, in active development, who let you to remaster your system and redistribuite it as iso images or from the lan via PXE remote boot.