For my entry in the Modern Maker Podcast's "Two 2x4 Challenge," I create a stool/accent table made from thin slices of run-of-the-mill framing lumber.

The rules were basically (a) make something from two 2x4s, (b) use as much of the wood as possible, and (c) it doesn't matter how long the 2x4s are, as long as you use two of them. Mine were 12 feet long.