Trick dice have been used in gambling and magic shows. These are dice that, when rolled, will land with a preferred number facing upwards. This makes the result of rolling the dice non-random.
I was able to find a few ways to make trick dice, and I'm sure there are many more methods.
While these methods do work, they are not flawless. It's possible for the dice to still produce an unwanted result.
I was wondering with new materials like liquid metal and such things. Is it possible to create a truly flawless die, which when thrown on a flat surface will always produce the same result?