A few years ago, I unintentionally made a run of beers with about 20-50% 6-row, when I bought the wrong grain. I found the flavor distinctive and not necessarily unpleasant. If I really wanted to try to work with that flavor, I think I would consider recipes in the Nut Brown Ale - Porter - Stout range. I can imagine that grainy flavor working in something like that, probably not going to be to-style, but could be tasty. It certainly would give your beer a unique character.