Give each child a simple pattern of an Easter egg to color (see a link for a printable one in the resource section below). Cut out the egg, and attach a photo of the child to the middle of the egg. Alternately, simply write each child's name on the egg. Put the eggs on the bulletin board, along with the title, "My Egg-cellent Class!"
Trace each child's footprint on a piece of pink or white construction paper (with shoe or without). Cut out the footprints and glue them to a paper plate as the ears of a bunny. Glue a nose and eyes onto the plate (have a parent cut them out ahead of time) and tape pipe cleaner "whiskers" to the plate as well. Then, hang up the bunny faces on your bulletin board with the title, "Hoppy Easter!"
Have each child color a pattern of an egg (see the link in the resource section below). On each egg, write the child's name and one thing they are looking forward to about spring. You can have a parent type this and then glue it on the egg later if that is easier. Hang the eggs on the bulletin board. Line the bottom of the board with Easter grass, or create a giant basket out of brown construction paper and put the eggs in the basket.
If yours is a Christian preschool, celebrate the true meaning of Easter by making a large cross on the board. Put the title, "Easter means Jesus loves us!" on the board above the cross. At the bottom of the cross, staple green construction paper flower "stems". For the flowers, have each child dip his or her hand in colorful paint and press it to the top of a flower stem. Write each child's name on the stem.