Terry Nation's Daleks from TV's Dr. Who were everywhere in the sixties.
You could also find the odd Mechonoid and Zarbi if you looked real hard.
But what about Chumblies - the little robots that assisted the 'beautiful' Drahvins in their attempt to defeat the 'ugly' Rills.
I'm sure the writer of the Doctor Who serial 'Galaxy Four' - William Emms - had high hopes of them becoming the next Daleks.
However, Chumblimania was not to be.
Or was it?
You can't have too many Chumblies...