The Michelin company's symbol is Bibendum, (aka "Bib the Michelin Man", "Bibelobis", or simply the "Michelin Man"), introduced in 1898 and one of the world's oldest trademarks. Today, Bibendum is one of the world's most recognized trademarks, representing Michelin in over 150 countries.

I dont love BK but some of their ads and websites are really well done and funny.
http://www.whopperfreakout.com/index.html

The Frito Bandito was the cartoon mascot for Fritos corn chips from 1967 to 1971. The Bandito was created by the Foote, Cone & Belding Agency, and animated by Tex Avery. The character was voiced by Mel Blanc, who used an exaggerated Mexican accent not unlike another character of his, Speedy Gonzales. The Frito Bandito spoke broken English and robbed people of their Frito corn chips, a reference to the “Mexican bandit” stereotype in western movies. He also complained that he was being pursued by the “Frito Bureau of Investigation”.

Charlie the Tuna, the cartoon mascot tuna for StarKist Tuna, was created by Tom Rogers of the Leo Burnett Agency.

Joe Camel (officially Old Joe) was the advertising mascot for Camel cigarettes from late 1987 to July 12, 1997, appearing in magazine advertisements, billboards, and other print media. In 1991, the Journal of the American Medical Association published a study showing that more children 5 and 6 years old could recognize Joe Camel than could recognize Mickey Mouse or Fred Flintstone, and alleged that the "Joe Camel" campaign was supposedly targeting children.

In 1957, Harry Barnhart conceived the character and Ernie Allen in the art department at the advertising agency Tatham-Laird & Kudner in Chicago, Illinois drew Mr. Clean as a muscular, tanned, bald man who cleans things very well. According to Procter & Gamble, the original model for the image of Mr. Clean was a United States Navy sailor from the city of Pensacola, Florida, although most people think he is a genie based on his earring, folded arms, and tendency to appear magically at the appropriate time.

Franken Berry is a member of the line of monster-themed breakfast cereals produced by General Mills for the North American market. It contains strawberry-flavoured corn cereal bits and marshmallows. Franken Berry is also the name of the cereal's mascot, a variant of Frankenstein's monster.[1] In 1971, the first two cereals in the line were introduced, the still-available Count Chocula and (strawberry flavored) Franken Berry. Franken Berry was very popular at that time, even though the initial batches of the cereal used a dye that didn't break down in the body, causing many children's feces to be bright pink,[2] a symptom sometimes referred to as "Frankenberry Stool." Franken Berry is sometimes mistakenly thought to be discontinued but in reality, its distribution is just much lower and more sporadic than that of the flagship cereal Count Chocula.

Twinkie the Kid is the mascot for Twinkies, Hostess's golden, cream-filled snack cakes. He is a registered trademark of Interstate Bakeries Corporation. He has appeared on product packaging, in commercials, and as collectible related merchandise. Twinkie the Kid is an anthropomorphized Twinkie appearing as a wrangler. He carries a lasso and wears boots, gloves, a kerchief, and a ten-gallon hat.