So I teach at a local art university, and after having mentioned sf0 and all the fun it brings to two full classes and 2 grad students that I'm advising, I finally feel justified in claiming this one.

Not the most creative solution, but it works.

p.s. - if any of my students join up and see this, know that it wasn't just an ulterior motive on my part - it really is just a lot of fun (which they'll likely already know if they're on here anyway).