http://math.uchicago.edu/~wald/bday_ra.pdf
http://math.uchicago.edu/~wald/thanksgiving17.pdf
http://math.uchicago.edu/~wald/jediatlast.pdf
(Brought to a games/birthday party, a Friendsgiving dinner, a Christmas outing, a Pre-Mystery-Hunt/birthday party, and an ice cream/birthday party, respectively. "Feast for the Senses" is slightly edited.)