There's that rabbit mixing up buttercup dye.
6 seconds sound clip from the The First Easter Rabbit (1976) movie soundboard.
You can hear this line at 00:02:11.075 in the Blu-ray version of the movie.
Quote context
[...]
- But how about that rabbit who comes every Easter day?
- There's that rabbit taking some blue from the sky.
- There's that rabbit mixing up buttercup dye.
- There's that rabbit painting his green everywhere.
- A magical hare, that rabbit.
- There's that rabbit. Easter's his garden to tend.
- Our cottontail friend, that rabbit. That rabbit. That rabbit.
[...]