If your DIY-minded kid wants to make a globe, doing it the traditional way would be impossible. However, they could certainly assemble a faceted globe made of laser-cut parts. That’s what a company called MicroNovelty is offering with their Wooblock, a globe and decorative base that you assemble yourself. An optional motor lets the thing spin, while magnetically powering an old-school wooden ship in a Magellan-like journey around the base.
Now I’m wondering: Could these be used to convince a flat-earther that the Earth isn’t flat, but that it is faceted? If you could get them there, over time you could probably wear them down to spherical.