I did not intend it to make fun of the ATF. It is the person who made the inquiry that was a little silly here. I am sure the reply could have only been as it was. If the shooter uses a shoestring to make his semi fire full, he has "made" a machine gun in the eyes of the law. If the person making the inquiry would have read and understood the law better, this would not exist. The law can be very confusing. I've found the ATF to be very helpful.
As far as alligator clips, some policemen are kinda challenged in the common sense department.
matchbook covers, too
klc
Please elaborate.. I am not aware of interesting uses for the lowly matchbook. There are some nefarious uses of course..