The Yolk's on You (1980)

The Yolk's on You is a 1980 non-theatrical Looney Tunes cartoon starring Daffy Duck, Sylvester J.Cat, and Foghorn Leghorn. It is part of Daffy's Easter Egg-Citement and it shows a rare time when Foghorn Leghorn, Sylvester, and Daffy all appear together in a mix.

More at Wikipedia.