If you're on about ridiculous openers, mine isn't outrageous, but it worked a treat on multiple occasions and you don't even have to say much at all.
When I first used this, I was sitting down at a gay bar in Vancouver.
It was getting pretty late, almost 1am and the party had subsided, my wings were off working their own sets (yes, they were female, I hope none of you are questioning the value of a gay night club!

) so there I was taking a breather, and along comes this slender brunette in a black dress. I couldn't see her face, she simply sits on a low stool with her back to me, perhaps only 4 feet away.
I wasn't about to tap her on the shoulder, and I wasn't about to shout over the loud thumping music to get her attention. Instead, I picked up this little cardboard flyer off the table in front of me, made the pointiest paper aeroplane I could and launched it straight at the open back of her dress, near the shoulder blade. It pinged off her and made her jump.
The girl spun round in a pissed-off flurry and when I saw her face, I gave her the biggest, goofiest grin. She was absolutely fucking stunning! A 9.5 for sure!
Now I'm not usually breathless in these kinds of circumstances, but I fumbled a little. The only words I could come up with was
"Hey, I didn't know how else to get your attention in the loud place. You can keep that plane, it just looked like you could use the company and I'm too comfortable right here not to start a conversation."
"Haha! It's okay, I was waiting here for my friend. He's over by the bar getting our drinks."
"Would you two care to join me then? It'd seem like a waste of this couch otherwise!"
"Sure!"
After that, I was briefly introduced to her gay friend in the frilly pink shirt and spent the rest of the night building up a little history with the girl.
We went for coffee the following morning and things took off from there.