Birthday Tech Gift Help

So my cousin's birthday is coming up and I need a new idea. He's 17 and getting towards the end of high school. Last year, I got him a rasp pi starter kit and he loved it.
I need something different for this year.
Any thoughts?

How much $ we talking?

Oh, good question. Probably around $50 give or take.

Nothing will be as expansive as the Pi, but you could choose one of the cheaper subscription boxes and get him six months or whatever. There are some as cheap as $10, but he might be too old for the ones priced that low.

Drone?

Robot?