For our wedding reception, we are going to have a trail mix bar station. We will have different ingredients (granola, m&m's, pretzels, etc.) and guests will be able to make up their own little bags of trail mix as party favors. We're going to have between 170-200 people there. Has anyone done this before and knows how much of the ingredients we should get? We're definitely buying in bulk, but as far as how much to buy- I just have no idea. Thoughts?