In a way. The Mk II at Bov is a male hull (i.e. fitted with racks for 6pdr shells) with a female, Vickers sponson. But that's a modern adaptation, not contemporary.
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Just wondering if there were any hermaphrodite Mark I or II tanks converted?
No. The point of hermaphrodites was to counter German tanks. These appeared on the battlefield from April 1918 by which time all the early Marks had been retired from front line service. Nor were there any Mark IV Hermaphrodites.
The Bovington MkII actually has the only known surviving original MkI Female sponson on the right side.
She was made into a Composite (I hate the term Hermaphrodite) post-war as a travelling exhibition, having been built as a Male and then converted to a Supply tank before being "Composited" and then finally converted to a replica MkI Female. I don't know if any other MkI/II/III survivors were similarly converted to Composites as exhibition or presentation tanks. But it certainly wasn't an operational service variant of Mks I, II or III.