In the cartoon, Excalibur is used as the spinner on the Round Table. But every time Excalibur stops and the scene shifts to King Arthur, Excalibur is not on the Round Table.
David: You're never gonna get an E if there's only 60 [sic] of them in the whole country.
Both Coca-Cola and Pepsi had run contests in which customers had to collect bottle caps to spell out words or phrases to win the prizes. (FYI: The rare bottle cap in the Coke contest bore the letter O, while the Pepsi Spirit game's most prized bottle cap read R. Interestingly, commercials for both contests demonstrated their most-rare game piece.)