Trunk mounted carrier for 2 bikes (Parkdale)

I'm going away to a music festival during the summer and we want to cycle from the campground to the showground because it's easily an hour+ walk. I'm hoping that someone might have an unused trunk mounted bike carrier for two bikes that I could borrow/or have by July 18th until after Monday the following week. If it's a 'borrow' I'll gladly bring it back after.