Yoda already has a last name, in case you're wondering!

Paul was talking to Spencer about Star Wars this morning and they had the following exchange:

Paul: I wonder what Yoda's last name is. Makumoto? Hiroshima? (Not sure why he picked these names)

Spencer: No, his last name is Duh. Yo-Duh!

Duh, Dad. Didn't you know that?