I just saw this old ad from the 50s over at io9, and it’s one of those freaky things that you can only get out of your head by planting it in someone else’s. So here goes.
Basically, it’s a really scary ad with a really scary clown. The cereal itself seems harmless enough, but still: guilty by association.
I had never actually heard of Sugar Rice Krinkles before this, so it looks like they didn’t exactly have much staying power as a product. This commercial might have had something to do with it: