I have tried those tyre lettering pens and they are pants.
I have looked at alternatives, one being heard applied decals (though i couldn't find a supplier), th either opion is to get a stencil made up and spray the lettering on.
There was a chap on here before who had stenciled on "Falken" on his ehh…. falkens.
I have seen a number of Japanese styled cars with similar.
I can get adhesive stencils made up with the Yokohama logo. I mocked it up today, this is were you need to bear with me and use your imagination.
Personally i like it, though my girlfriend was less than impressed. i can agree with her a bit and the phrase "too many babbles on the xmas tree" does spring to mind.
So opinions please.