Longest Upside Down Game of Monopoly???? please help?

Question

i know the record is 36 hours but what did they use for dice (i know its a dumb question but my college professor said if i find out ill get extra credit) so maybe some genius person on here knows

Answer 1

IDK.

Answer 2

I was able to find a few references to that game that was played upside down, but nothing mentioned what they used for dice.  Interesting question.  This site had a link for customer service - you never know -someone there might know the answer!