I made this Elmo Costume for my 11 year old niece. I got a pattern for hooded pajamas and used red furry fabric to make the pajamas. Then I bought Styrofoam balls for his eyes and a flat oval shape of Styrofoam for his nose.
I covered the eyes with white fabric and colored the pupil with black marker. I covered the nose with orange fabric. I hot glued the eyes and nose to the hood. Ta Da, Elmo is done!