Rexs via Amazon offers Prime members the Xrexs Digital Kitchen Timer for $9.94. Coupon code "CG2QHIWE" drops it to $6.94. Plus, Prime members bag free shipping. (Non-members can spend $49 to bag free shipping; otherwise, it adds $6.01.) That's $8 off and the lowest total price we could find. It features a magnetic clip, loud alarm sound, and count up or count down modes.