Bill & Ted's Excellent Cereal was a cereal based on the Bill & Ted movies and cartoon of the late 1980s and early 1990s. It was promoted with the branding slogan "A Most Awesome Breakfast Adventure". The magazine Mental floss ranked it first in their list of the 10 best marketing-inspired breakfast cereals. The cereal was made by Ralston Purina, which at the time sold food products for both humans and animals. The cereal was cinnamon-flavored and had mini music-themed marshmallows, although they resembled pieces of Kibbles 'n Bits.