Huh. I have both the PS-88 and PS-120 sets too. I keep them in their little plastic cases (makes it obvious if one has gone astray) and have never been bothered by the smell (which is undeniably there). I don't find it to be that terribly strong, and it's only really noticeable to me if I put my nose right up to them.
I guess we all find different things objectionable, huh? (Or perhaps I fried my nose years ago at Nat Semi with acetone, xylene, IPA, developer, phototresist, etc...)
-Pat