Take note that if you wish to use that method, you are doing it at your own risk. It is unsafe and most likely you won't be given support if something goes wrong.

That is true, but no one will buy them. The reason is HH and Mines are easy to gain in an event, and people already have tons of them, and dont want more. I love my HH, but I only use it on my CV so it last longer, I dont use mines, I tried selling some mines years ago, and no one would buy them, because everyone already had mines, to be honest mines are just useless, only good thing about mines are for HA and thats about it.