The character with a heart "two sizes too small" is The Grinch, from Dr. Seuss's classic book How the Grinch Stole Christmas!, describing his initial bitterness and lack of Christmas spirit before his heart grows three sizes due to experiencing the Whos' joy. 

The "Wienermobile" advertises products from the Oscar Mayer brand, a well-known American meat producer, with its iconic hot dog-shaped vehicles promoting everything from their classic wieners (now called Franks) to other related deli meats and branded items like Weiner Whistles. 

The company that makes Golden Crisp cereal is Post Consumer Brands, a well-known name in breakfast cereals, with the product available in the U.S. and its Canadian equivalent, Sugar Crisp, also made by Post in Canada. 

The first sitting U.S. President to ride a train was Andrew Jackson (the 7th President) on June 6, 1833, taking a 12-mile trip on the Baltimore & Ohio Railroad from Ellicott's Mills, Maryland, to Baltimore as part of a unity tour, marking the first time a president used the "iron horse" while in office. 

Quasimodo is the main character in Victor Hugo's classic French novel, The Hunchback of Notre-Dame, originally titled Notre-Dame de Paris, a story set in 15th-century Paris featuring the deformed bell-ringer of the cathedral and his love for the beautiful Esmeralda.