In Seattle they had a gun buyback event in January of this year. The offered a pittance for rifles and pistols. Private gun buyers set up shop a half block down the street and offered almost twice as much for weapons. The police ran out of money and people who had been dropping out of line for the private buyers deserted wholesale. Here is the link;
http://seattletimes.com/html/localne...uybackxml.html
One thing to note about this story, there are a few lies in it. The so-called missile launcher shown in the photo was actually TWO launchers. One was a training device and the other was the empty tube of a throw away weapon. Neither of which could be fired. So much for honest media.
Kaylens idea works though and as far as federal law goes is not illegal unless she is a convicted felon.