I presume email, and that GP misspoke when they said "model" and meant a file that the key could be modeled and printed from. That being said, that solution de

I presume email, and that GP misspoke when they said "model" and meant a file that the key could be modeled and printed from. That being said, that solution definitely skirts the intention of the puzzle, but would certainly work given the restrictions the puzzle did list.