With additional formal events, a more formal toast is suitable, and unless you are a naturally-gifted and golden-tongued spokesman, you will need to do some practicing beforehand to get it right. When I had to form a toast latterly, I turned to the film, "The Count of Monte Cristo", in which Jim Caviziel's personality delivers a gem of a toast to an a teen boy entering adulthood.
Before you start the toast, you may doubtless need to break the ice by discussing something about the person ( s ) of honor to whom the toast is directed. This story, then, should lead you into and relate to the toast itself. The 1st line of the toast should state a general observation in life employing a metaphor related to the introductory remarks that you just made. If I'd felt like crying tears of amazement before, I felt like sobbing with relief now. "Happy Valentine's Day," Randy related with a grin. "Yes, well," he claimed, "it's not every day your better half loses her ring in a carpark and then you spend the following half hour hoping it did not get stuck in someone's tire treads. Then again, it also implies that I have discovered another reason to like my hubby.