Omnitech OT-NXC10PA 10-Sheet Cross-Cut Shredder for $19.99.  To get free shipping, you simply need to sign up for Staple's rewards program, which is free and easy.  Here is a screenshot for your reference.  The shredder shreds credit cards and staples and features 2 minute continuous run time, overheat protection, and a 3.28-gallon wastebasket.