This is one I did trying to use my left (non-dominant) hand as much as I could.  It really makes you slow down and consider every stroke, which is good (but sometimes frustrating).  It about 9x12, oil on museum board--"about" because I bought a cheap frame at Hobby Lobby and then cut the piece to fit it before I painted.  I'm actually not so poor that I can't afford standard sized frames, but the bargain lover in me can't resist a low price sometimes.