I'll keep you posted on the dates for the next League Cycling Instructor Seminar in Chicago. The most likely dates are May 13, 14, 15, but I still have to confirm that all the facilities we need are available then.
This is Nate with the balaclavas. I have a bunch and am following up your idea of trading a balaclava for some knickers.
The felt balaclavas have old-timey Chicago manhole covers screen printed on them.
Hope you're doing well.