Manny riding an adult size tricycle at spring training. ESPN has the video [here].
With all the Pedro talk, I was gonna mention how cool it'd be to see Nelson de la Rosa (famous for the picture below) but was saddened to learn he passed in 2006. Known also as Mahow to his fans he is credited with being the world's smallest actor and the fan site dedicated to him remains in tact. He did an interview with Jimmy Kimmel a few years back and I'm pretty upset that I missed it. Rest in peace, Nelson.