It's really a waste of time. The Easter Beagle does that.
3 seconds sound clip from the It's the Easter Beagle, Charlie Brown movie soundboard.
You can hear this line at 00:19:00.289 in the Blu-ray version of the movie.
Quote context
[...]
- I've run out of money, and I can't buy anymore eggs.
- Kid, I hope you're right. I don't want my little friend here to be disappointed.
- It's really a waste of time. The Easter Beagle does that.
- Leave me alone. Don't bother me with your stupid ideas.
- Well, Marcie, I'm really sorry. Here it is, Easter morning, and we don't have any colored eggs.
- I'm the one who's sorry, sir. I guess I'm not much of a cook.
[...]