T-Shirts work for -everything-. Non-crappy t-shirts (if they're actually witty even better!) will boost the morale of almost any group. See the group of grumbli

T-Shirts work for -everything-. Non-crappy t-shirts (if they're actually witty even better!) will boost the morale of almost any group. See the group of grumbling engineering students. Now see them happily putting on and wearing their purple engineering t-shirts, temporarily forgetting the tortures that the faculty unleashes on them. They might even -like- the faculty for a while. If only so they can make sure they'll never -ever- be confused for an arts student.