I only bought vouchers for one table at the D-Backs Fan Fest. It's $5 per voucher and that gets you 1 autograph per person at the table. You can buy up to two vouchers per table.
I bought two vouchers for a table with Paul Goldschmidt, Tuffy Gosewisch, and coach Andy Green.
I debated on what to have Goldschmidt sign, but in the end I went with these two tickets and I had him inscribe "MLB Debut" and "1st Career HR".
Tuffy Gosewisch was next. We got his team issued postcard and we had him sign a picture of him and my son on the field prior to a game last season.
Andy Green was next. Even though it was 1 item per voucher I took a chance and asked him to sign 5 cards. He was really nice and seemed to enjoy it. He even joked around with Tuffy and Goldschmidt saying that the cards were proof that he had actually played. Here are 4 cards. There was a double of the last card.
We also got the team issued postcard of Andy Green as well.