One fifth of Mr Men fans want to play with toys based on the brand.
Youth research agency Dubit asked 1,500 children about heritage brands and what they'd most like to see in the form of a toy.
Dubit looked at where toys polled the highest among their fans, relative to other potential mediums, like games or TV shows.
The heritage brands with the highest potential of fans wanting to play with licensed toys were Mr Men (21 per cent), Pingu (20 per cent) and Inspector Gadget, Berenstein Bears and The Jungle Book (all tied on 19 per cent).
"Mr Men toys are popular with fans aged six to ten years old, peaking with fans aged six to nine years old," read Dubit's research.
"Pingu is more suited to younger children, finding favour as a toy with fans aged under nine and performing best with children aged seven and eight years old.
"Inspector Gadget resonates well with fans of all ages, but best with those aged six to eight years of age.
"The Jungle Book received a relatively poor reaction, aside from six year old fans, an impressive 62 per cent of whom want Jungle Book toys.
"Bernstein Bears has a similar split; toy demand is highest with fans aged six and seven years of age."
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