The foot seems to be healing. He's favoring it just a little bit and I made the MD appointment on Friday for centipede removal. I'm sure that will cost me another $20 in legos.
PS - Centipede: Black thread of stitches hanging out of a wound. Harry dubbed them this after he (and I quote the emergency MD) 'fileted the tenderloin' of his arm on a nail during the great bathroom retiling project.