I temporarily sidestepped the issue by duplicating the code from
ImageStripMediator in the two new mediators. It was
just a line or two, still, not very pretty. Sadly, with the way my
current deadline is looming it'll have to stay that way until I've
got some more tinkering time.
But I think this could be solved with either method, Joels is
more tailored to my specific need but i think Shauns is a bit less