Bestbuy offers Insignia Computer Speakers for $12.49 (reg $25) with free shipping.

Product Description:
Listen to your favorite music or enjoy streaming video with this set of Insignia computer speakers. An integrated headphone jack lets you enjoy stereo sound without disturbing others, and the universal design works with desktops and laptops. With simple power and volume controls, these Insignia computer speakers offer effortless operation.

• Compatible with most audio devices with a 3.5mm output
  Including most Mac and PC computers for wide-ranging use.
• Magnetic shielding
  Allows placement next to computer monitors without causing interference.
• Built-in power and volume controls
  Make operation easy.
• Headphones jack input
  Allows simple connectivity for private listening