Suspend Food Hammock on Curtain Rod. Here's a great Camping Hack: Hang food hammocks on an adjustable shower curtain rod in your camper or boat. Nothing permanent, no holes to worry about. Add velcro to the ends for better stability.
DIY Boat Cushions for cheap! I used vinyl tablecloths from walmart $3.97 each. You can do 2 or more cushions w/ each one (depending on size) I realize they won't last forever , but I did all of our pontoon cushions for under $20!