I sent a Twitter "friend" (who labelled himself a nuclear anthropologist instead of archeologist) a copy of a book called "100 Suns" by Michael Light, which is a coffee table sized book full of photos of nuclear tests. The book is eerily beautiful: http://www.michaellight.net/suns-intro
In return (and entirely unexpectedly) he send me a small package with a handful of small pieces of that Mark 17 bomb casing he collected in Albuquerque - just like that last pic in the article. They're sitting on a shelf with my piece of Trinitite and my pieces of Maralingite (sand fused to glass by an atomic test in the 50s/60s at Maralinga in South Australia)
I have some weird internet friends who know my weird interests...