The earliest of spring gardens can be started indoors. One such garden can be made with an empty egg carton and eggshell halves. Place empty eggshell halves in the cups of an egg carton. Invite children to fill the shells with potting soil and carefully plant seeds in each one. Keep the egg carton closed so that the seeds will stay warm and sprout more quickly, watering the soil as necessary to keep it moist. After the seeds have sprouted and grown into seedlings, you and your group can plant the eggshells outside, crushing them slightly before placing them in the ground. This is also a good time to compare seeds with their end product via pictures. Purchase a few seed packets for this project. Your group can cut out pictures from the seed packets and glue these onto construction paper creating a collage. Glue a few of the corresponding seeds next to the picture. To keep the seeds from falling off, laminate this collage with a sheet of clear adhesive paper on top.