Anna, I'm SHOCKED!
Truly, cursive is a lost art. But, that's just it. It's artistic. Maybe if you taught it more as a "secret code" or a foundation for an art project here and there, the result would be the same?
I am known in our small circle as having nice handwriting. I've even had checkers comment on my checks. But, I didn't learn to write nicely until jr hi and that was because I decided to work at it. The cursive writing from a century ago began with slanted lines. First you made slanted lines that all went the same direction and were the same size. / / / / Then you did loops the same way, etc. It's called Spencerian writing, I think. It's an art.
I had a friend that used to make art work out of your name in cursive. He'd write the name and then make loops and squiggles and things all around it on the page until you couldn't quite make out the name unless you "found" it.
Just some ideas.