Would you like to have your mind boggled? Then look at this link below (sorry, can never remember how to do the wee screen thing).
The background to this is that Daughter 2's husband-to-be is an actor and improviser - he belongs to Showstopper, an amazing company which improvises musicals - words (rhyming) and music (harmonising) from audience suggestions about plot, characters, genre etc. I don't know how they do it.
And this is even more astonishing - it's one of his colleagues, Shaun, who's in Showstopper and another company called School of Night, and he's really, honestly, improvising a sonnet based on the tin hat he'd only just been shown. Daughter 2's chap was filming it. Shaun had just finished improvising a sonnet about a yellow pencil and D2's chap was filming it to upload on to YouTube, but Shaun vanished from view by sitting down just as D2's chap was zooming in, so they had to film a second one.
You'd think it was impossible; but D2 swears it was genuine improvisation. Shaun can do this any time.
It would take me a day to write a sonnet with a pencil and paper and even then I'm not convinced it would be nearly as good.
You could look at one of the Showstopper clips too, and maybe go and see them if they're performing anywhere near you. They really are good. They're mainly in the London area but are coming to the Edinburgh Festival Fringe as usual.