Yeah, I have a piece of acrylic that I've drilled holes in half of, I was just looking to cut a corner. I'm using it for the time being, I was just looking to cut a corner to save me from more drilling. I do have the problem of it spilling over the side, but not really a big deal. It'll just have to be something I keep an eye out for. Maybe I can find something sooner or later that will work.
I need basically 17"x17" - kind of random, but thats what fits. I found plastic peg board online, but they want $20 a sheet for it.