CaCook via Amazon offers its CaCaCook Stainless Steel Adjustable Mandoline Slicer for $23.99. Coupon code "BW4U4WME" cuts that to $16.89. With free shipping, that's tied with our mention from three weeks ago and the lowest price we could find by around $12. It features six stainless steel blades and cuts to a variety of sizes. Deal ends April 30.