But she has a letter — the politest of rejections — from the Queen's deputy correspondence co-ordinator which, complete with its royal seal, she will frame. And she has had the attention of New Zealand's media.
Seven Sharp's rival, The Project, also tried to woo her, and she's been interviewed on national radio — as well, of course, featuring on the front page of the Chronicle when we broke the story.
She confessed that with all the media attention she had an inkling of what it was like to be a famous royal.
And Marie's brief turn centre stage has also been a lovely promotion for Whanganui across the nation's media.
"I'm doing this for Whanganui because this place deserves to be in the spotlight," she said as she prepared to face the TV cameras.
"We love it here and the people are genuinely nice."
So maybe not a Royal wedding guest, Marie — but top of the list should Whanganui decide to appoint an ambassador.
