This is a great example of what you can do with reclaimed pallets. This fella disassembled pallets nail by nail for the wood and then built a project that has not one, but two uses. When the back is folded upright it serves as a back rest for a nice bench. When you fold it down it becomes the top of a half picnic table. If you made two of these they would be a nice matched pair of benches and make a whole table top big enough for 4 to 6 people to use.
Follow these links for more info on building with pallets and which pallets are safe to build with.