I collected baseball cards and I was always intrigued by cartoon images that would appear on the back side of the cards. For example, a player might be referred to as a "bonus baby" and would appear in cartoon form as a child in a diaper with oversized safety pins. I think these images stuck in my head and I began to grow my own personal inventory of these sporting cartoon puns in my head. Soon the inventory spilled over into spreadsheets and various...