Chris,
The "Mystery" giver isn't really that much of a mystery... More like an "anonymous RAK'er"...
I got the addy for the box, and I know the origins of said box. The person that sent it wishes to remain anonymous in the eyes of IAP. I think they are trying to start a new trend... the "Mystery RAK"...
I suggested that Kinggabby post a thread about it, just to show the benefits of not being afraid to post your work, no matter how few pens you have made. I think the box was sent because Kinggabby has been working hard, and taking alot of notes on the critiques he has been given. His work has improved dramatically, and this inspired a RAK. I can't wait to see what my friend Kinggabby does with the contents of said box!!