Teaching History with 100 Objects, I think this might be a statue made of a Greek theatric mask (the originals were not made of clay and didn't last). And I quote:
With its exaggerated, grotesque features, this terracotta model shows the mask worn by the old man character in many comedies of the 300s BC and later. He has a wide grin, furrowed brow and bald head and wears a wreath with ivy leaves and clusters of berries. The masks worn in tragedies were different, with idealised features set in calm, serious, or sometimes pained expressions.
This mask is not a toy and he's clearly not fooling around.
And here are the ensemble photos of joker masks. As usual, I've done my best to assemble coherent groups on a page given the constraints of the page size and materials that I have to work with.