URGENT! Speech help!?

Hi, so I know I just posted a question almost exactly like this, but I couldn't edit it and I needed to let you know how urgent this is. I need help with my persuasive essay (I will have to present it as a speech though so advice on that would be awesome too) to support gay marriage.For starters, I have no clue for a good grabber. So far it has a pretty sarcastic tone to hold my classes attention so if you can have anything like that that would be helpful, as well. Thanks so much!!