FIRST OF ALL you want to use el (electroluminescent) wire
SECOND you would need a gas generator with you if you wanted to use a neon tube.
THIRD. a neon tube inverter supplies enough power to light up the empire state buildin so unless you want to die by accident i wouldnt use a neon.
FOURTH you could us 4"/6"/12" cold cathodes and buy the battery pack for it. that is a deal less lethal, much cheaper. about 8 dollars for 2 tubes and inverter. and it is portable.
why dont u just ask sean what electronics he used. i ask him stuff all the time. and ask link o he knows alot of that too.