A “nerf fan” is, simply enough, a fan made out of nerf. You know, that weird foam-like material they make children’s footballs out of. As for why it’s in the belly of a sumo wrestler, I cannot say. Perhaps for the same reason your freakish cyclops lady has an imitation magnet in her.
And people say we’re not evolving as a species… 
I personally think your fan beats my cyclops lady hands down as you can actually use it for something. I’m still not exactly sure what utility a non-magnetic magnet has.
And thanks alice, but I wouldn’t want to give these items to anyone without knowing exactly what they are. I’m just positive there are liability issues here somewhere…