I had this Stan Musial "rookie" signed for me by The Man (not in person, but mailed to him). It's not worth that much in the grand scheme of things, but it's one that I never plan to let go:
Next isn't a card, but a ball I recently acquired. It's mainly a 500HR club ball with a few exceptions (Rose, Lemon, Sewell). I plan on trying to get more 500HR player autos over time. Just back from Richard Simon as well.
Lastly is a 1984 Topps Don Mattingly rookie. Value? Probably $5. But it was the first GOOD card I ever got when I started collecting back when Mattingly was HOT. I recently picked up my childhood collection from my parents house and there it was, still in the screw down holder I bought for it because I cherished it so much.
Not my card, but spot on.