*Cracks Knuckles*
As a long time lurker, I've built up a pretty decent collection of stories (well, links at least). Much of which is from Writing.com.
Admittingly, 90% of them is complete junk, but I've found a few good ones.
Now lets see...
http://www.writing.com/main/inte...63-The-Transformation-Gun-The Transformation gun is what it sounds like. While it does, well, mostly transformation stuff, an entire function is dedicated to pure mind control.
http://www.writing.com/main/interact/item_id/943023-a-new-day-A new day's a bit of an odd one. It has vore, mind control, cloning, body control, etc... I skip a lot of it (not my kind of thing), but you might find something interesting. Lot of putting people into trance. That's a thing.
http://www.writing.com/main/inte...4361-Happy-Hypno-Holidays-What it sounds like. Happy Hypno Holidays is you take a holiday, add an item that can hypnotize people/control reality, and have fun! Halloween timeline is a personal favorite for obvious reasons.
http://www.writing.com/main/inte...7070-The-Mind-Control-Wig-Not a personal fan, but I can't really leave this out. It's such a huge MC story I can't ignore it. Especially since most of it avoids what can be considered "hardcore." Just give it a shot, but don't expect to finish the entire thing...
http://www.writing.com/main/inte...47-Narutos-Hypnosis-Jutsu-It's a naruto thing, so if you're not into that, don't bother. Still, as the title suggests, it's all about hypnosis, and it's pure abuse. Really, some of the storylines abuse hypnosis to a way that's a bit... odd. Not the best writing at times, but interesting for anime fans.
I have more, but this'll do for now, especially since The Mind Control Wig can hold people off for a long time... None are finished sadly, but that's the way interactive stories go. They don't end.