question about the movie " national treasure "?

Question

what was the stuff that he ( ben ) put on the campaighn button ... to get the mean declaration ladie's fingerprints on the keyboard ?
also what kind of laser pointer did riley use to make the heat sensors go off ( that green laser pointer ) ?
thanks for ur help .

Answer 1

Lasers which use argon gas have a green beam. I don't know which was used in the movie, but a lot of green laserpointers are offered for sale at this site, and if you browse it you may recognize the model:
http://www.vavolo.com/Func_info.asp,Func_ID,39,Func_Name,Green+Laser+Pointers,,.htm