Just be nicer than the choir teacher; that should do it. If you can't do
that decorate cookies with a Picasso like painting and give them away in
the halls between classes. Or, well, I guess food is the only answer.
PS An alternative is to use clay everyday of the year; my students loved
it and kept me busy for an entire career. Now I just stay home and think
of smart ass comments to make on a listserve.