Tell your nephew, if he has an interestt, to get into building scale models, aircraft and ships. I am quite the 1/72 scale aircraft enthusiast. Monogram's B-1B, Testors B-2 and AMT's B-52H are the best 1/72 scale bombers (IMHO) readily available.
I have about thirty 1/72 scale modern fighter, bomber and recon aircraft built and authentically painted and detailed and have about 12-15 more yet to build.
Also, am big into 1/700 and 1/350 scale ships. Have an entire US and an entire Russian CBG in 1/720.
Also have the battleship Missouri (modernized version with tomohawks and harpoon missile launchers), a Spruance class DDG and a Ticonderoga class CG built in 1/350 scale (the Missouri is BIG) also have the 1/350 scale USS Enterprize waiting to build. That one is mu ultimate ship model. Got it for Christmas about five years ago and am still waiting for the right tiome to start building it when I can give it the attention it deserves.
Oh well ... I'll post a couple of pics later this morning to this thread so you can show him if he has any interest.
Regards.
I bought him an SB2C Helldiver ( also 1/48 Monogram ) for the fact that the gear retracts, the hook works, the wings fold, the canopies slide, the bomb bay doors work and the 500 lb bomb drops. He & his dad put that one together . His new interest is in all things explosive and we spent a whole day at WPAFB looking at the various munitions.