Say you have come across a very large sum of money, however, it was obtained through illicit means and it has only come into your hands as part of an elaborate money laundering scheme. You can spend it on whatever you want as part of laundering the money but if you spend it on any sort of good cause like a charity it will poison said charity and cause a scandal that will bring it down. Likewise it's too risky to give it to any sort of left wing organizing group because it would become an excuse for the FBI to bust that organization through their involvement with money laundering. Whoever you give the money to next, they must be complicit in laundering this money to its eventual intended destination.
So what do you do with it? I would create an intentionally terrible short-term rental on a lesser known AirBnB rival. The interior of this rental would be as hostile to the guest as possible. Full length built in mirror in front of every toilet and every bed. Seating in all the worst places. Strange uncomfortable decorations. The opposite of feng shui. There would be a low coffee table right in front of every door so you're constantly almost tripping over them. The photos on the listing would all be fake. It would basically be designed to go out of business in a short amount of time. During that time, the liquid cash I'm laundering is converted by the bank into equity, yes? The cash obtained through illicit means has been returned to the river.
When the short term rental business "fails" in a legitimate and convincing land, I could then sell the "business" at a steep loss to someone who then sells the land to obtain clean cash.
Now obviously you could also just go to an Australian slot machine and deposits money $5000 at a time, play one slot, then cash out and get clean bills. But that's not nearly as fun.