Is There Demand for a Wedding Toast Seminar?

I'm doing a bit of market research to see if there's demand for a paid, half or full day seminar that teaches how to write and deliver a terrific wedding toast. My thought is that many people are nervous or terrified about delivering a speech. Half the seminar would focus on creating content for the speech (what to say), and the other half would focus on delivery (how to say it successfully, while managing nerves) What do you think? Would a half day or full day be better? Or what about two or three evening meetings, each a week apart, so people can practice and get experience delivering in front of an audience? If money's not a problem, should the bride or groom pay for this? What else? All feedback is appreciated. I never thought someone might be offended if bride & groom offered to pay for a seminar on giving a speech like this. I thought of it only in a positive light as being helpful, but obviously that's not always gong to be how others see it.