In Episode 2 of the anime Yuyushiki, Nonohara Yuzuko drew something in response to Hinata Yukari's drawing of a strange penguin-like creature, and wrote down "Sunagimo Umataro" (砂肝うま太郎) on the same page. After some search on the Internet, I now know that "Sunagimo" means "gizzard", which is a digestive organ in chickens and ducks that may be made into food, and "uma" is just a way of saying "delicious". It seems to me that "Sunagimo Umataro" is a name that Yuzuko came up for the creature in the drawing, but I am still not smart enough to connect all the dots and make a meaning out of this. Specifically, I am having trouble figuring out
What exactly are those items that appear in Yuzuko's drawing?
How is the drawing supposed to be connected to the name "Sunagimo Umataro"?
I apologize if this is question has an obvious answer. (Maybe Yuyushiki is just too difficult for me!)