A relevant link: Constructing a fair 3 sided coin. In particular, they mention John Von Neuman's argument of the
dimensions of a "fair" cylinder, but the argument is based on solid angle
only, and not dynamics.
Dr. Daniel B. Murray
University of British Columbia Okanagan
Kelowna, BC, Canada V1V 1V7
Email me: cofrest "at" hotmail "dot" com
daniel "dot" murray "at" ubc "dot" ca