Seeings it's a small set of hands, nothing. You could try a polyurethane varnish, but I'd be inclined to sand it and make sure there are no splinters.
This is assuming you're using it inside.
Indoors, it's been 'smoothed', the square pieces are PAR so I assume the dowel is also 'planed'.
@Backstop started
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Seeings it's a small set of hands, nothing. You could try a polyurethane varnish, but I'd be inclined to sand it and make sure there are no splinters.
This is assuming you're using it inside.