Havent been to a news agency in a long time.
I think the 4 above are popular ones.
Alternative might be robotics, such as Servo magazine. I think might be too advanced? But would keep interest.
I just find that with these project magazines, the cost of bits and pieces are out of reach for a kid with no job.
http://www.servomagazine.com/The other area, where some might rub on him, would be RC cars. Again another expensive hobby, but will teach some basic stuff, voltages, batteries, rf, frequency; plus mechanical concepts, gears, suspension, nitro engines. Leading onto planes/drones perhaps.