A colorful, ghostly tessellation by Alora R., a student in Math Teacher Mary Jo Hughes' 8th Grade Math Class/Haunted Mansion* in Clearwater, Minnesota. Notice how Alora has balanced the scary sad faces with happy faces, and even included a ghost with glasses (my favorite).
Compare Alora's handling of the ghost tessellation theme with these two other artists' handling of the same topic: Lydia W.'s "Ghosties" and Mike Maloney's "Ghosts". It's interesting how very very differently each artist has approached the same theme.
* No, not really. The other parts are true, though.