I've been doing some ice dyeing in preparation for the Southern Highland Craft Fair coming up next week. I found a good system for laying the scarves on top of the trays. I bought some vinyl shelving at a home improvement store - 24" wide and 6' long. I was worried about the lip on the front side of the shelf - maybe preventing it from lying flat. But the trays were 22" wide and the shelving cleared it. Perfect, off to a good start.