Svensk webplats:
The Swedish central bank sometimes create "celebration coins", e.g. royal weddings etc see picture below.
Convince your father to by a small symbolic amount of Trump coin, as a symbolic "celebration coin" to keep as memory, if he agreees to by the rest in BTC as store of value.
The best and simplest gift for Christmas, birthdays, exams, parties, dinners, etc., is in my view sats (and if it's their first time, include a personal 12-word wallet key). Along with this, I promise to explain Bitcoin and how to set up the wallet...
I also tell them they can view the gift as a future lottery ticket (though, of course, I'm totaly convinced it's the best gift they'll ever receive, but let's stay humble 😅
In this way, I also try to orange-pill family, girlfriends, their kids, friends...