found on White Rock beach at low tide, sharp at both ends after soaking in WD40 overnight. nothing like anything I've ever seen. Magnetic and looks hand-forged
this makes sense knowing where I found it, it's around an old pier that was historically used for fishing/crabbing. looking in google image search I came across this image: http://www.iforgeiron.com/uploads/893/sml_MG_5508marlinspikes.JPG looks like what you described and is called a "marlinspike"