Two groups were really good, one was fairly random (three half names of food outlets, and one mascot from one) and just don't see. I don't understand how ballpoint (pen), safety (pin), grenade (pin?),fire extinguisher (pin?) work as a grouping.

What Malcontent said, although I wasn't even able to make the fast food connections at all. I did like the aid group though, not one that I've seen here before.