Have TRI-M officers organize chapter members to serve as ushers at music concerts in your school. They can also assist with clean up after the concerts
Around contest season, organize officers to set up a nursing home performance by TRI-M members. Experience shows me that about 6-7 students fills an hour nicely.
Organize officers to set up student performances outside of the main office, cafeteria, atrium, music corridor or other high traffic area immediately before or after school. Perhaps once a week or once a month.
Organize officers to offer assistance to other music teachers in your district with set up, teardown, ushering, or other approraite task for their concerts.
Organize officers to plan and execute a clean up the music department activity.