I've heard of peanut butter and banana but never pickles!
Where did you get the idea?
Have you ever had peanut butter and cucumber? Yum. Take very soft white bread. One side peanut butter, the other side butter, thinly sliced cucumbers and a little salt and pepper...
Ok, everybody needs to try this if you haven't already:
Toast your bread, spread it with peanut butter, add a few slices of pickles (doesn't matter which kind)
I'm telling you...it's AMAZING!!!
No offense, but not even if my life depended on it.