Hmmh. I wrote I piece of code to simulate any fair positive-integer sided die or a deck of cards provided you have a fair 2-or-more sided die or a fairly shuffled deck of cards. I liked the deck of cards thing, it was nice as a dice simulation, no flying parts. Don't know if I can clean that code though if anyone would like to draw cards to make their private key... but it's fun for someone to code. It's a fun exercise to convert the cards to a number while allowing shuffling in the middle etc, suggested for any hobbyist coder.

Maybe it's interesting to note that no finite amount of fair dice rolls with a die that has less than 3618502788666131106986593281521497120401173883721090761956411348172442546698 sides can be guaranteed to give a truly random (with equal chance for all possible keys) private key (similar to a 115792089237316195423570985008687907852837564279074904382605163141518161494336-sided dice roll). Fortunately reality isn't that harsh and more than 100 rolls with a six-sided die are rarely needed