I've used a few of these Old Timers. The design is perfect, holds a good edge, been making them for years. The only reason I've owned more than one is because I keep losing them (or they're getting stolen at the camp).
http://www.amazon.com/dp/B000IE3ZKA/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=GU2PGYQ31MZ0&coliid=I37BDX7XYXFVBU
http://www.amazon.com/dp/B000IE3ZKA/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=GU2PGYQ31MZ0&coliid=I37BDX7XYXFVBU