Didn't Judy Garland reprise the Sad Hobo clown a couple times? IIRC, that is also now a drag queen gendre (at least represented as such from the movie "Birdcage").
Similar in some respects to a Red Skelton character.
Pennywise wasn't actually a clown perse, but an illusionary mask of the actual creature IIRC. Still no good.
Has there been a production yet using zombie clowns? I was thinking I had seen or heard some such, but cannot now place my finger on it.
Then there was Pavarotti's (sp) sad clown... I don't reckon he would've been much help in a survival situation either.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)