But only once a year, on Christmas Eve.

5 seconds sound clip from the The Life and Adventures of Santa Claus (1985) movie soundboard.

You can hear this line at 00:42:58.383 in the Blu-ray version of the movie.

Quote context

[...]

- I would like to use the deer again. And I think they enjoyed the trip.

- Well, I don't know about that. One time, yes, but...

- It's for the children. Won't you reconsider?

- Pour les enfants, bambini, kinder, ninos.

- For the children.

- For the children!

- Well, since you put it that way... Okay, for the children.

(small group cheering)

- But only once a year, on Christmas Eve.

- Christmas Eve? But that's only ten days from now.

- You won't have time to make enough toys.

- You'll lose an entire year.

- Maybe not.

- But how?

- If I had the toys the Awgwas stole, I could easily fill the sleigh, and more.

[...]