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When it comes to soft plastic conversions, I can only recommend a good pyrogravure (with heat controller) and good old body putty (with lots of liquid plastic glue to soften it up and shape it with the brush in the bottle)!
This method allows you to combine bits and pieces from all kinds of figures and produce exactly those figs you need.
TryItYoullLikeIt!!
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Cheers
Romain