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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.
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Or was it?
You can't have too many Chumblies...