No, and I don't intend to.
Then it should also be illegal to have a mark on the top of the putter? Is this not also an alignment aid? Where does it end?
It is illegal to put something on the course, not your equipment.
I keep my ball pristine until I putt. Then I pick it up and use a sharpie to draw a curved line to show me the break. J/K
On a more serious issue there's a guy I will no longer play golf with. Charming, conversational, intelligent. But he's a 15 handicapper who aligns his golf ball line an average of 3 times before each putt. So we're talking an extra 90 seconds per putt. And he still misses the putt most of the time. I'm a fast player so that just annoys the hell out of me.