Used a list of similar goodbyes as our first shared reading at the beginning of the year. The kids LOVED them. They're still posted by the door and they say them all the time.
Five Senses Preschool Theme from Preschool Plan-It. Ideas for art, block center, circle time, cooking, dramatic play, easel, gross motor, literacy, math, music/movement, sensory, science, and writing... This is one of my go-to sites for planning.