Mop Top Pop

Mop Top Pop is a soda Ned has in his secret Beatles room.

History
When Bart and Milhouse discovered a secret room in Ned Flanders' home full of Beatles merchandise, Bart drinks a can of this.

Flavors
Mop Top Pop comes in 4 different flavors, each of which is named after a Beatle. They are:
 * "John Lemon",
 * "Paul McIced Tea",
 * "Orange Harrison" and,
 * "Mango Starr".

Side rffects
The only known side effect of Mop Top Pop is you'll start seeing hallucinations of the specific Beatle whom the flavor is named after. For example, when Bart drunk some "John Lemon", he started seeing Milhouse in important events of Beatles history, with Milhouse taking place on John Lennon.