Currently have the following:

2006 Upper Deck SP Authentic By The Letter A.J. Burnett "E" Auto (33/50)
2006 Upper Deck SP Authentic By The Letter Dan Haren "A" Auto (034/180)
2006 Upper Deck SP Authentic By The Letter Marcus Giles "S" Auto (085/136)
2006 Upper Deck SP Authentic By The Letter Nick Swisher "S" Auto (295/340)
2006 Upper Deck SP Authentic By The Letter Nick Swisher "E" Auto (095/170)

Would love to add some more...PLMK