I recently worked with frillerup to organize a testing party for people in Michigan and we received lots of requests from people to mail their items to us.. We weren't sure how it would work, but it turns out the mailing thing worked well. I am going to need to test some more materials/items and am wondering if there are more folks who want to get their stuff zapped with the XRF that couldn't make it last time to the testing event or would like to mail items. I'm trying to get an idea of how much time I would need to reserve with the person who did the testing for us last time. Thanks!