What's the Kennection? #179

The hazardous lead that caused the health crisis in Flint, MI leached from what objects?

In 1636, what Dutch exports were briefly among the most valuable goods in Europe, before the price bubble collapsed?

Rudy Vallee had a big hit in 1931 singing that "Life is Just a Bowl of" what?

The "music" emoji is made up of three of what symbols, which are also called "quavers"?

According to legend, what dinnerware items were originally modeled from casts of Marie Antoinette's breasts?

What's the "Kennection"?