I became aware of another eggcorn today: "get one's gander up". I guess "dander" is a pretty obscure word if you don't have a cat. Perhaps people who make the mistake are equating "get one's gander" with "get one's attention (negatively)".
Update: Language Log takes on the question of "Whence dander?"
Posted by Francis at 03:58 PM | TrackBackDang, you are so far ahead of me in the race for Language Log name-checks. It all comes of inventing your own word.
Thanks,
-V.