Last year we did a bit of screen printing. We went to Savemart and bought a whole lot of blank T-shirts (well, all the decent ones we could find, which wasn't all that many, as most T-shirts are already printed). The kids went on the internet and found pictures they liked, (mostly movie-based as it turned out) and cut the stencils themselves. I did all the stuff involving paint. They turned out quite nicely, I think.