Van said: @Blue
That actually sounds really neat — how do I know which filters will work with his drone?
Just figure out the exact drone model. That’ll narrow it down quick. Tiffen and PolarPro are good brands. DJI makes some too — a little pricey but you know they’ll fit.
If he’s getting serious, maybe gift him a Part 107 training course (like the one King offers). He’ll need a license if he wants to sell footage someday.
Here’s a few ideas: A cool carrying case for all his drone equipment, a daytime/nighttime reflecting landing pad, a screen shield & cover for his remote screen, lanyard for remote, extra/newer cooler thumb toggles, extra propellers, night time drone lights, ND filters, drone airline fish bait dropper (if he’s a fisherman), DJI mini microphone kit.