v2.6.2 support input of a private key in base6 format which shall be defined as:
99 characters (1,2,3,4,5,0) where 1=1 and 6=0
This allows you to create a private key with physical randomness with 99 rolls of a die. Use 3 dice and do 33 rolls.
Then enter the 99 character string into the wallet details tab of bitaddress.org and you've got yourself a truly randomly generated bitcoin wallet.
If throwing 3 dice... would need to ensure you don't introduce any bias such as reading from lowest to highest. Would be best to read dice from left to right as they fell.
This is nice. The hex format can be confirmed with this I think -
echo 'obase=16; ibase=6; 0123450123450123450123450123450123450123450123450123450123450123450123450123450
12345012345012345012' | bc
Nice to not have to rely on computer rng.