The friendship-first opener
This example leans into the humor of a long friendship before pivoting to something real. It works because the jokes are about situations, not about embarrassing the bride.
"Sophie and I have been friends since we were seven years old. In that time, I have watched her do approximately one thousand things I promised never to put in a speech. This is not that speech.
What I will tell you is this: Sophie is the person I have called first, every time, for twenty-two years. The flat tire at midnight. The job offer I didn't know whether to take. The Thursday evenings when nothing dramatic was happening but I just needed to hear her voice.
When she told me about Daniel, she used a word she doesn't use lightly: safe. 'He makes me feel safe,' she said. For someone as self-sufficient as Sophie, that is not a small thing. That is the whole thing.
To Sophie and Daniel. May every year feel as certain as this one looks."
Notice how the humor comes first, earns trust, then gives way to something true. The bride gets to laugh before she cries.