How would you get an ad in front of ONE specifically targeted person?

So, I’ve identified that for various film-related reasons, I need to do the opposite of what we all usually do: rather than broadly targeting millions of people, I need to very specifically get an ad in front of about 20 specific, named people.

I’ve already got a raft of networking-related techniques to do that, but since STM is full of alarmingly clever people, I thought I’d ask and see how you’d all do it, since there’s every chance there’s a Better Way.

So: you need to get an ad in fron ...