This might be a bit outside the norm for /m/, but I'm betting I'll get better results here than /r/: I have two boys, ages 6 and 11, and I'm looking for LOTS of black-and-white lineart drawings of stuff from Gundam. Something like what I've included, but preferably with a label of what suit it is and from what series, but plain is fine.

Kids like to color, so why not giant robots, right?