This modding was done by Richard Taylor from
WETA (this company did special effects for Avatar, District 9, Lord of the Rings, etc.). It is sold at
auction in Australia by Microsoft itself in honor of reaching a million prefixes sold. The auction will last another 4 days, at the time of the publication of the topic, the price is approximately $ 480,660.
ps: do not be lazy to watch videos on the link WETA, they are worthy of a separate topic!