This past June, I spent a little time with the former toy buyer for Sears. He was a wealth of interesting info but my favourite takeaway of that conversation was this anecdote.
I am paraphrasing:
Basically, the buyer asked Kenner to make "The bar with all the aliens" as a play set for the Sears catalog.
The Kenner rep was initially reluctant feeling it wasn't good to market taverns to children.
"It's not a bar, it's a cantina, call it that"
And thus, the Creature Cantina was born.