Not handheld, but manual:

http://www.acehardware.com/product/index.jsp?productId=1278253

I've had mine for like 15 years and it still works fine. The one in my parents house has got to be at least as old as I am and the only thing wrong with it is the magnet came off sometime when I was in college.
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Heather

"I distrust those people who know so well what God wants them to do because I notice it always coincides with their own desires." -Susan B Anthony