I have an old GREEN rug that is currently at srl's that I think he cannot use. It's 13 years old and was one of the first things I bought for my first apartment. It's oval, and about.... 4X8?

I was also thinking a bale of straw that you could scatter and/or some haybales that might also work as benches. I, ahem, know some people who might take them as mulch afterwards...