I do these worksheets / activities with students in my New Student and Friendship groups after we read, "The Adventures of Beekle: The Unimaginary Friend" by Dan Santat.
I also have the students make their own Beekle by..
1) drawing the outline of Beekle on a piece of colored construction paper.
2) mixing glue and shaving cream together (use popsicle sticks to spread out the mixture to create Beekle's body.
3) Cutting out yellow and black construction paper for the crown, eyes, and mouth.
I also have students make their own 3D imaginary friend. Students can use colored play-doh or a good size rock. They can paint it or add pipe cleaners, pom-poms, etc.