When they come back, I think we'll have a form of "silent auction" in case more than one person wants the same knife. The starting price will be the price I paid, plus shipping to get it to you. I won't charge for the laser-engraving on it. The winning bid will be highest bidder, but the price will be $1 more than the next-highest bidder. Sort of like a Dutch auction.
If nobody else wants that particular knife, you get it for my cost. Any profits will be plowed back into the knife program.