As one of its daily deals, Meritline offers the Zombie War Spring-Assisted Folding Pocket Knife in Black, model no. T272637, for $7.99. Coupon code "MLCP17XN" cuts that to $4.99. With free shipping, that's $3 off list and the lowest total price we could find. It features a 3.5" blade, half-serrated edge, and pocket clip. Deal ends April 20.