> true random numbers (generated from radioactive decay or somesuch) are both
> unpredictable AND statistically random, but they're not so easy to get.

In a security project of mine I plan to generate (un)predictable random
numbers by implementing an EEPROM based always-increasing counter
and encrypting the each output with an algorithm like DES.

I believe that this gives me unique "random" numbers that only I can
predict (because only I have the secret key).