Health groups want them banned because our children are getting fatter.
Toucan Sam, Coco the monkey, Captain Birds Eye and Fredo Frog could be the endangered species of the junk food world.
The characters, who have filled our TV screens and supermarket shelves for so long, may soon be banished - and it's causing an almighty food fight.More stories from Today Tonight
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The Obesity Policy Coalition wants the Government to ban cartoon advertising aimed at kids.
According to spokesperson Craig Sinclair "we need to stop the marketing of junk food products to children, purely and simply."
He says "These rather innocent looking characters are, in many ways, the Trojan horse for junk food. Beverage and food marketers do really get children hooked, get them involved, and get them to love their brands, so that they try and influence their parents to purchase."
We know the power that children have over us when they start pestering, but what's actually behind it? Is it just the sugar kick or is it the colourful characters and cartoons jumping out at them in the aisles?
According to dietician Melanie McGrice "they're really tempting because you get some freebies in the pack, and they're collecting things. One pack (could be) Scooby Doo, another (will have) Simpson's magnets, and they really entice you to buy more of them to collect the whole range."
But it's not just the obvious that is eating at our kids. Marketers have come up with more and more creative avenues to influence them. For example Streets have release free DVDs which feature the Paddlepop lion as the lead character.
Another example is M&M's, who've released a smart phone app that kids can download for free.
Sinclair says that when it comes to the online environment "there are no controls in place which are really inhibiting junk food marketers from directly marketing to young children."
However mum and media commentator Melissa Hoyer believes cutting cartoons would take the fun out of treat time.
"We are becoming a real nanny state," Hoyer said.
"One of the most fun things of opening some boxes of cereal or treats is for some gets to get those little toys. That's not encouraging kids to eat that food, it's just a fun part of the retail process."
Which gets you thinking: what would happen if apples came with iPhone apps or grain bread came with a fun DVD. Would kids want to buy them?
There's been an attempt from the Australian banana industry to make those bodies sing, but according to Deakin University's advertising expert Paul Harrison "the problem is that the healthy foods don't have the resources or money to actually spend on advertising that these highly processed, high energy kind of foods have."
He believes that's affecting our kids in a big way.
"There is an obesity crisis. Australia is ranked as one of the fattest countries in the world," Harrison said.
Since the 1950s, when many of these well-known characters were introduced, the body fatness of Australian children aged zero to eighteen has increased at a rate of more than six per cent a decade.
One in four children are now overweight or obese, and if things continue at the same rate, by 2025 one in three kids will have a weight problem.
But Hoyer says even if kids are enticed by junk food the real power is in the parents' hands.
"Don't take your kids to the supermarket," she advised.It's certainly a talking point, and we'd love to know your opinion.
- Obesity Policy Coalition - www.opc.org.au
This reporter is on Twitter at @tinekae