I got one at Prima Foods (http://www.primafoodsinc.com/) the big wholesale/foodservice place (also allows retail customers) over by 95 and Pulaski highway. It's more of a Greek restaurant style one--stainless with a plastic handle. I can't remember if they have the brass ones or how many different sizes they have. Works great, though and only cost 6 or 7 bucks.
Cheapest olive selection in the city, too.