If you are feeling crafty, I turned a pallet into an inexpensive patio couch (just sanded, spray painted it purple, and then placed foam covered with outdoor fabric on top. There are a lot of great ideas online of DIY tables and chairs – or if you placed it on Craigs List with a $5 price, you would probably have someone come by and snag it soon.
If you look on CL (or even post on WSB) you’ll get a taker pretty quickly. As Thistlemist pointed out, pallets are a hot item right now for reclaimed/upcycled products. Even in the past, there are lots of guys who will pick them up for free and resell them.