Amazon offers Prime members the Columbia River Knife and Tool Drifter G10 Plain Edge Folding Knife, model no. 6450K, for $16.48 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.14.) That's $8 off and the lowest total price we could find. It features a stainless steel 2.9" drop point blade and belt clip.
Note that this item may take an extra day or two to ship.