Not really, I’d be happy with 15. 
Seriously, I just got word that we’re going to uber-nice demo fundraiser and I’d like to fit into my nicest dress.
Can I have some support? Who’s with me? Aaaarrrrrrr…
Yeah, I’ve been waiting on that magical fat fairie too, but she’s taking her sweet time getting around to my big butt. 
I say use this as an excuse to go buy yourself a new outfit!
You can then slowly lose the weight and be ready for next time.
Have fun! 
I think you got 2 choices. Either find a really talented friend and do some “at home lipo” or lop off some body parts.
Maybe 3 choices. Go shopping!
Hate to break the news, but it just won’t happen. That is alot of weight to lose in a short time; sure alot would be water and you might feel thinner but it’s an illusion. The only way to lose that much weight will be over time - but at least once it’s gone it’s really gone. In the meantime treat yourself to a really nice new frock and have pleasure in throwing it away when you’re way too thin that you can’t wear it.
Hah. “Lop off a leg” was going to be my suggestion. My dad cut off a finger with a powersaw and asked his doctor in the emergency room what the doctor thought of his weight loss system.