What's the Kennection? #362

Due to its black and white spots, what did Richard Nixon’s family name the pet cocker spaniel he made famous in a 1952 speech?

What “King of the Cowboys” had nine children with his wife Dale Evans?

What video game hedgehog has no children with his self-proclaimed girlfriend Amy Rose?

“Pop Goes the Weasel” is the most common tune played by what kind of toy, inducted into the National Toy Hall of Fame in 2005?

Boston’s Tremont Street tunnel, which opened in 1897, was North America’s first what?

What's the "Kennection"?