There’s an episode of Good Eats where Alton Brown chucks a cordless drill onto a pepper grinder to pretty good effect.
I saw that episode and imitated with my Milwaukee cordless drill. It's very very good.
I’ve done this with my coffee mill. The grind shaft is a hex and the chuck connects perfectly. I like to do it manually normally, but the kids get a kick out of turbo grind mode.
The whisk actually works like the electric ones. It has two “whisks” and then it has some sort of wheel that you turn around to make them spin. It’s really astonishing how something so simple can challenge my English so much lol. But you can get drills that work in a similar fashion, I know because we had them at carpentry class when I was in what we call folkeskolen, so maybe the school that you go to before high school?
I've done basically that but with a beater; you have to run the drill quite slow but it works.