Gifts for younger Tinkerers and Fixers

We bought our son his first sheath knife for his naming day, it's still sat waiting for him to use when he's a bit older (he's 12 now). His second knife was the Opinel safety knife (No.7) when he was circa 6ish. He progressed onto the Leatherman micra, which now is his go-to tool for around the workshop and house.  He also uses the tools we have (under very close supervision and angle grinders are still off-limits). 
We don't sell tools for kids, but we do like the idea of encouraging the next generation to Tinker and Fix.  And we do have some things that might be a good fit...