I don't think Wonderful Pistachios is going to run any ads during the Super Bowl, but if they did, they'd be a shoo-in for the "Most Egregious Use of B-List Celebrities" award. Frankly, they might deserve the lifetime achievement award in that category just for their most recent series of ads.
That's probably the one I find the stupidest, mostly because (a) Keyboard Cat isn't even a celebrity and (b) that's not even the real Keyboard Cat (who is dead, as we all know by now). Also, the way the guy says "purr-fectly" drives me up the fucking wall. But I mean, here's a list - not sure if it's fully complete - of other people appearing in this series of ads:
R. Lee Ermey
Lucy (and Charlie Brown)
If you have no idea what's happening at the end there, you are probably over 40, and I envy the hell out of you.
Look at that list. Granted, it's not completely terrible - Ermey appears in other ads, for instance (though it is worth noting that Ermey is not mentioned by name in his ad, implying that he is the least famous person on the list). But Rod Blagojevich? A guy who is only famous for beating corruption charges despite permanently looking like the cat who ate the canary? Wee Man, at best the third-most famous person from the inexplicably long-running Jackass franchise? And even though I will grudgingly admit that Jersey Shore's popularity means Snooki is famous enough to appear in these ads, is she really someone well-liked enough to constitute a positive endorsement?
I also don't really care for the construct of the ads. I'm sure they're cheap to make, and I suppose they're sufficiently original among what's out there as to be memorable... but we're talking about a gag ripped off of any one of a hundred bumper stickers that say shit like "Teachers do it with class." And then all they do is take that and cram pretty much whatever random quasi-famous person comes to mind - probably not even the first ones, just the ones they can most easily write puns for. It's like Mad Libs: "[person/thing of note] does it [adverb/simile]." That's it. Even if it's successful, I don't think such a lazy excuse for creativity deserves to be praised. Or to put it in terms they'd understand: Wonderful Pistachios ad writers do it... hackily.