I was riding last night and talking to a fellow unicylist about the problem that some of ya’ll are having with hitting your ankles on the splined hub equipped Muni’s. This product may offer a solution.This particular brand is expensive, but I imagine your local bike shop can find the pedal spacers by a another supplier for less money. They may even help to add more stability by increasing the Q factor:
http://www.pacelineproducts.com/menu_pages/products/PedalSpacers.htm