What sweets come with collectible cards featuring famous witches and wizards?

Chocolate Frogs

In baseball, what is a relief pitcher specialized for closing games called? The Moselle river flows through Germany, France, and which other small European country? Which Canadian rock band created the song "The Suburbs"? What historical journey westward was marked by encounters, challenges, and survival struggles for settlers in covered wagons? In which state is Mount Rushmore located?