I actually got this:
http://www.lazerpoint.com/p-1000mw-405nm-adjustable-focus-waterproof-violet-purple-laser_1816850
I chose the EMS delivery option and received it in less than 5 days.
Does it work? Absolutely! It roasts the crap out of almost anything -- translucent things are obviously a little more difficult. I realize that most aiptasia are in fact, translucent. But if you aim it at the mouth like in the above video you will get pretty much the exact same results. HOWEVER, if the pest is rooted relatively deep w/in the rock, IT WILL COME BACK. But it is extremely fun to use, so I personally don't mind this since it takes a while for them grow back.
That said, I personally didn't buy it for aiptasia since I have relatively few. The remaining ones are in places I cannot get an easy angle on w/ the laser and also cannot accurately aim a syringe at (under rock ledges and such). I bought it to take care of my digitate hydroid population, and for that it works quite well. Just aim the laser at the base and it's toast (pun intended).
I do feel obligated to also post that
these are NOT TOYS. A direct hit in the eye with one of these can/will permanently blind you and it will take far less than a second of exposure in most cases. When the light reflects off the glass in such a way that it hits my bare skin, I can feel it. If you do decide to purchase one, do yourself a favor and read up a bit on them
AND GET GOGGLES. I personally only use it when I'm the only person in the room.