Activity for Crystal

So I plan to do moss down the middle of 8ft tables (It’s an enchanted forest theme). I see Amazon has boxes of moss but it’s by pounds. Has anyone done this? If so how much should I order! 5lbs? 10? More?

My ceremony is going to be in the forest and my reception will be in a brick barn. My theme is very vintage boho and I really want to go barefoot during the ceremony. I do however have shoes for the reception. I wanted to see if anyone else had a...