So, the timeline appears to be this:
Adorable flesh and blood penguins, Penguins in 1932 followed by the marketing of Tim Tams in 1964
I (of course!) googled this and found this,
Mr Norris,first thought of the Tim Tam in 1958 while on a world trip for the company, searching for new ideas. In Britain, he came upon the Penguin, a type of chocolate-coated biscuit sandwich.
"I thought that was not a bad idea for a biscuit ... we'll make a better one," he recalled.
Ross Arnott threw in the name Tim Tam in honour of that year's Kentucky Derby winner.
©2003 The Sydney Morning HeraldWho knew?
I love this kind of thread; it's fun AND I've learned something new! Thanks to the op