maybe you could let them try their names, then an animal or sports equipment,
they could use black perm. marker and watercolor (or watercolor pencils!!!
depending on the age)and have lots of examples for them to look at -
kids(even 12th graders) love to write their names - the name exercise could
cover learning the medium, design, color, calligraphy, etc. then, if some
really like it, they cold design their own versions of stained glass windows
that tell a story about themselves, their school, favorite color, state, town
etc. - hope this helps :-) Deb W