I’ll second the never-Trojans thing. Not so much because they’re too thick (being female they all feel the same from this side), but because in my experince Trojans have a much higher break rate than any other brand.
You don’t wanna be Auntie quite yet!
A family portrait while you are all around and still in good health. Plus something else.
That ain’t gonna happen between now and Thursday, especially as we are in different time zones.
If he’s at all into computers, a Wacom tablet would help him a lot with his artistic bent.
See you’re already parting ways.
He was born the month after I graduated college in NY and moved back here, so we weren’t on the same path (whatever that even means) to begin with.
I know a lot of guys like pocket knives or Leathermens but a lot of guys (like myself) do not. Seriously, if I got one as a gift it would end up in my toolbox or in a pen drawer. I don’t even like large keychains. A wallet and keys is about all I want to carry around with me.
Make sure he’s a pocketknife type guy before you get him one.
Not to hijack, but I’m gonna have to respectfully disagree on that point.
In other news, I read the thread title as “what to 18 year old boys LOOK like”, and thought for a moment that someone REALLY spends too much time at the computer!
I should have posted this earlier, but I got him a Swiss Army knife a couple of years ago for Hanukah (in Switzerland, even!), so that base has been covered.
What Do 18-Year-Old Boys Like?
To be called men. 
You can get a pretty comprehensive set of metric/SAE socket and box wrenches plus pliers and screwdrivers at Costco or Sears for $100 or so. My nephew seemed to really appreciate that.