Amazon offers its Prime members the Nite Ize DoohicKey Multi-Tool in Stainless, model no. KMT-11-R3, for $3.41 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.50.) That's the lowest total price we could find by $3. This multitool features a box cutter, bottle opener, wrench, ruler, and flat head screw driver.

Orders placed by December 22 are guaranteed to arrive in time for Christmas via Prime shipping.