Sent 2 trading cards, LOR, and a SASE on 03/31/2014 to the address in the database. I got it back today (07/31/2014).
Willow Shields
Principato Young Entertainment
9465 Wilshire Blvd.
Suite 900
Beverly Hills, CA 90212
USA
One of the signatures is faded but still visible enough. Regardless, I'm still really grateful that she took time out of her schedule to send them back
i got my trading cards in the mail too today. my as well were smudged :/ but still really cool to have! haha
In person successes: The Host cast + author (Jake Abel, Max Irons, Diane Kruger, and Stephanie Meyer. (plus x5 separate signatures from all of them, my friends gave me their autographs from the event), Willow Shields, Veronica Roth (x3), Ansel Elgort, Paul Wesley, Sam Claflin (x2), Stephanie Leigh Schlund, Jena Malone, Alan Richardson, Ransom Riggs, and Tahereh Mafi. TTM successes: Willow Shields, Sam Claflin (x2), Josh Hutcherson (x4 all autopen), Jennifer Lawrence (x2 secretarial), Stanley Tucci, DC cupcakes, Alexander Ludwig, Honey Boo Boo, Sarah McLachlan, Jackie Collins, Bruce Hayse, Wheel of Fortune, Judge Judy, Purchased autographs: Spring Breakers Cast (Ashley Benson, Selena Gomez, Vanessa Hudgens, James Franco, and Rachel Korine), Hunger Games cast, Twilight Saga cast (x2), Selena Gomez, Jennifer Lawrence, Emma Stone, Marie Lu, John Green (x4) and Amy Adams
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Great Success 
updated 3/16/2025
Still better than getting nothing 