lost tool aka man down

I just got done putting my new sub box together when i noticed a wayward brad nail sticking out in the port. So, I went and got the same pair of needle nose vise grips I always use to pull out an errant brad except this time i dropped the tool down into the port and it rounded the corner. For the life of me i cant get the damn thing to come back around that corner. Ive tried a claw like grabber, a rare earth magnet that will literally make a tool come up off a table to stick to it and its being very stubborn. Any suggestions on getting this thing out of there? I'm not too overly worried about it interfering with the performance of the speaker as much as I am it rattling around in there. Any advice is much appreciated