I'm having a baby shower in a few weeks and where I live doesn't offer much in terms of elegant catering. So my mother-in-law and I decided to do much of the food ourselves (for approx 40 people). We've opted for appetizers that are served cold or warm/room temp + desserts and beverages. The hall we've rented doesn't have a kitchen available to us, so we won't be able to keep refilling platters as they empty; all of the food will have to be out at once. Does anyone have suggestions on how to accomplish this? We do have several chafing dishes for the warm selections and I figured we could stack the apps up with parchment paper separating the layers. Is there anything out there that would allow us to securely stack trays/platters without damaging the food that sits on them?