Peanut Butter on grapes is just...so yummy. Myself and my best friend tried it before, it was so nice. People gave us weird looks, but hey. It was great. XD

Also, Peanut Butter on crisps (that'd be potato chips in the US) is also nice. And Salt on Ramen is good too.

There are a few things I'd like to try though... like Peanuts dipped in garlic sauce. I just need to get a hold of some peanuts first. Erm... Oh, I did try BBQ Pringles in Garlic sauce not so long ago. That was pretty nice too...