Over the years, I have accumulated a lot of metal divot tools that some golf courses give out free.
I have probably given away about a dozen of them in the last 6 years here, when I mention to someone about repairing their pitch marks and they give a lame excuse about not having a divot tool with them.
After explaining that I know they have tees on them and that they can also be used (if properly trained) to repair pitch marks...I'll then give them a divot tool so they no longer have an excuse.
I'm sure a lot of them probably only used it while playing with me and still don't bother to do the right thing, but hey...at least I gave it a shot.