Print out the eggs and laminate for extended use. The eggs are a decent size and are big enough for the Sunbeams to use.
Tell the Sunbeams that through Sharing Time/Singing Time that they need to keep their eggs warm so that they can hatch a little bird afterwards.
The Birds are stickers and will fit onto the Avery template for the sticker paper (you don't need to download anything, just print as an 8.5x11 page onto the sticker paper) I used a circle punch (1 inch and 2 inches) to cut the character stickers out.