Oh, some other things you might consider.

Ive seen some people make "fake" neons by putting LED's inside peices of a straw.

At Target Ive also seen this neon wire (I believe you get 6 feet of it and a plug that goes into the cig. outlet), I actually bought some of it one time but I couldnt get it work right, it worked for maybe 5 seconds then it just stoped.