It was t-shirts, not bobble-heads:
Mike Jacobs ISN'T Jewish? (Who knew?)
Oy Vey!
"The Marlins thought they were honoring their Jewish first baseman when they decided to give away Mike Jacobs T-shirts as part of Jewish Heritage Day at Dolphin Stadium this afternoon. One small problem — Jacobs isn't Jewish, a fact the Marlins would have learned if they'd asked Jacobs himself."
NY Daily News article clears the air ... sort of
"HAVE FAITH: The Marlins will distribute Mike Jacobs T-shirts to children tomorrow, on "Jewish Heritage Day." The problem? Jacobs isn't Jewish. When the ex-Met inquired about what seemed like an error, club officials insisted they were separate promotions. "They said it wasn't done intentionally, but I don't know about that," Jacobs said. "It's a big joke around here.""
Diamonds are for Humor: Mike Jacobs ISN'T Jewish? (Who knew?)