Today only, MidnightBox offers this Spy Pen 4GB DVR Hidden Digital Camcorder, model no. 10020257-110, for $19.95 plus $3.99 for shipping. That's tied with our December mention and the lowest total price we could find for a comparable 4GB spycam by $4, outside of the price below. It features 4GB memory with up to 90 minutes of recording, USB charging, 2-megapixel digital camera, and more.

A close price: Meritline offers this similar Spy Pen 4GB DVR Camcorder for $24.99 with free shipping. Expect it to take two to three weeks to arrive.