Most Heroic Attack/Defence Reward

I don't know if this has been suggested or ruled, i searched but couldn't find it. I think it would be nice within clan wars if there was a small reward for most heroic attack. Defence would be nice but I understand there are ways this could be rigged. Heroic attack however cannot (I don't think) be rigged and requires skill so it would be nice if there was a small reward. This could be something like 10 gems,+10% war loot bonus, or something else. It's nice to be recognised for a heroic attack but I thought a small reward might be nice too.

Requested a lot, in future please use the search button.