The Easter Bunny's Assistant by Jan Thomas

Easter Bunny has an assistant. Unfortunately, he sometimes gets a little carried away.

Bently and Egg by William Joyce

From chapters.ca:
Bently Hopperton is an artistic frog, pressed into egg- sitting by his friend Kack Kack the Duck. Bently can't resist painting Kack Kack's egg, and thanks to his dazzling brushwork, his charge is soon mistaken for an Easter egg and kidnapped!

Henry, Egg Artiste by Marcus Pfister

From chapters.ca:
Henri is a true artist who has grown tired of decorating his eggs in the same old way. Readers are led on an exploration of the art world as Henri creates beautiful works in the styles of celebrated painters of the past. Vincent van Gogh, Leonardo da Vinci, and Claude Monet are just a few of the geniuses who inspire Henri, Egg Artiste. A delightful way to introduce children to a world of masterpieces, this book has applications that extend far beyond the obvious Easter promotions. Marcus Pfister's bolder, brighter palette is sure to win this popular author/illustrator even more fans.

The Golden Egg Book by Margaret Wise Brown, illustrated by Leonard Weisgard

From chapters.ca:
"Once there was a little bunny. He was all alone. One day he found an egg. He could hear something moving inside the egg. What was it? So begins the Golden Easter classic about a bunny - and a little duck that is about to hatch!

Country Bunny and the Little Gold Shoes by Dubose Heyward

Country Bunny, the mother of 21, obtains the position of Easter Bunny and must balance his responsibilities.